I'd like to invest in a pair of waterproof-breathable pants for one- or two-week treks where I might encounter rain and snow. Ideally, the pants would not be too bulky as they might spend quite some time in my backpack (I hope). If possible, please note any brands that I can find in Europe! Nicolas Heverlee, Belgium

My Boy Scout troop is planning to buy some rappelling gear, but we need some advice first. Eric Shelbyville, Indiana

I'm looking for info on bike trailers, having checked out some B.O.B. models, the Yakima Big Tow, and Burley's Nomad. Any insights as to which one would be best for city commuting? Also, any suggestions for where I might look for a used one? Linda Olympia, Washington

I currently have an older version of the Tubbs Sierra snowshoes, but I find them to be too bulky and heavy for those trips where crampons are also required. How does the MSR Denali snowshoe compare to its competitors, and what is the "floatability" factor of the MSR snowshoes? It seems they're very narrow, so I'm curious if they will keep you from sinking in soft, deep snow. Scott Newmarket, New Hampshire

Will a pair of electric socks, worn inside waders, work when I'm steelhead fishing? More importantly, will these be safe if I'm wading in water? Ed Pawling, New York

I've got a Bibler Betid tarp, and looking for some extra protection for my Mountain Hardwear sleeping bag (down with Conduit SL shell). I don't want to carry the Betid's floor since it is a bit heavy, and doesn't offer the protection I want. Please suggest a sleeping bag cover or bivy that will allow my bag to breathe, yet shed any moisture from condensation or the occasional exposure to rain. I'd prefer not to break the bank on this, as well. Dennis Staley Englewood, Colorado

What are the alternatives to Gore-Tex? Are there any that stand out from a protection as well as breathability perspective? I would love a Gore-Tex shell, but cannot afford to drop $400 on one. Alex Charlotte, North Carolina

Do you know of any evidence that pepper spray is an effective defense against a mountain lion attack? Mike Rapid City, South Dakota

I have an aging Columbia anorak shell that I'd like to replace. The problem is that I'm having trouble finding any new anorak-style jackets. I don't mind pulling the thing over my head and love the big front pocket. Any suggestions for a replacement, something I can use when hiking, climbing, and skiing? Chris Albuquerque, New Mexico

Where can I buy a hip belt to use as a harness for pulling my homemade gear sled? Bruce Easton, Pennsylvania

Dear gear swi, I'm looking to get back into mountain biking but have absolutely no clue about mountain bikes these days. I haven't ridden one nor done any research in about six years. If you could reach into the vast knowledge that you call a brain and offer some advice on bikes in range of about $1000, I would be in great debt to you. (And I would prefer a hardtail.) J.R. Venice, California

I have a few trips planned in bug-infested territory. The problem is that I hate DEET. I just don't like using the stuff. And citronella-based products are useless. Is there anything new out there that is effective, safe to use, and won't melt plastic? Jake Santos Chicago, Illinois

In November I'll be doing the Hong Kong Trailwalker (www.trailwalker.org.hk), a 100-kilometer race with a lot of big ups and downs. I will probably do in about 25 hours. Last time I did it in Reebok DMX10's. I liked that they were lightweight and I think the cushioning helped my knees a lot on the downhills, but I developed large blisters and lost three toenails, which was rather unpleasant (I didn't get feeling back in one toe for six months.) I'm thinking that maybe the DMX's were just too flimsy for the trail and let my feet move inside them too much. What are your suggestions for other shoes to consider this time around? Mike Luechtefeld Dallas, Texas

After spending all my life camping in the mountains of the eastern United States, I've fallen in love with the southwest Texas desert, and I'm in the process of learning about those techniques and equipment that will work in that very different environment. No trees, blazing sun, the ground too hard to set stakes, fairly constant strong winds... The first problem to solve would be creating some shade... My Integral Designs Siltarp, which works great in the forests of Virginia, is useless as a sunshade, being almost transparent. Are there any tarps out there that would be suitable for sunshade duty, or is a piece of black six-mil poly my best bet? Bill Stell Charlottesville, VA

I'm planning a trip to Tibet, and I'm looking for a bag in the zero to ten degrees Fahrenheit range. In addition to struggling with the age-old down versus synthetic issue, I'm also confused by the suitability of those Sierra Designs' down bags that include add-on top layers, such as their Buddy Rad. (They even suggest stuffing clothing in between the layers if it's cold.) Will this setup keep your whole body warm if the add-on layer only goes on top? Overall, I place great value on lightness and even more on compressibility, but I'm always wigged out about getting down wet. Matthew Boston, Massachusetts

I'm in the market for a new sleeping bag and would like to give a down bag a try, mostly because of space and weight issues. I'd be using it primarily as my summer bag, so a 30-degree rating should be enough. Do you have any advice for a good down bag? Andy La Crosse, Wisconsin

I've been looking for a zero- or minus five-degree sleeping bag for use in early spring, but found that nobody makes any quality down bags for women. What's up with that? All Western Mountaineering bags are huge, while Feathered Friends makes only two women-specific bags, but they're rated only for 10 and 20 degrees. I just wonder, does the outdoor industry think that every outdoorsperson is some huge guy with wide shoulders and skinny hips? That has got to change! Anyways, for the problem at hand: I'm five-foot-six and on the lean side. What's a quality down bag that won't require me to expend extra energy in order to heat up excess room inside the bag? Jennifer San Diego, California

I have recently begun rock climbing and have decided it is time to purchase climbing shoes (I sure that this isn't another phase for me like decorative soap making). I have been told and read that when purchasing climbing shoes to buy them one and a half sizes smaller than your regular shoe size. Will they really stretch one and a half sizes lengthwise to fit my foot, or will I just be inflicting some strange foot torture on myself? Thanks! Matthew Cpion New York, New York

What's the best tent for winter camping? I'm interested in a two- to three-person tent that's lightweight, packable, and available at a low price. I will be spending time in northern Massachusetts and the White Mountains this winter. I've been looking into single-pole shelters like the Black Diond Betid ($98), and while comfortable with not having a sealed floor, I worry about water seeping in. Do these tarps really work? Are they reliable? Is it possible to find a reliable four-season tent under $200? Boaz Sender Boston, Massachusetts

I need to find a tent for winter camping and mountaineering. Living in Oregon I intend to stay within the Cascades. I have narrowed my search to the Fusion 2 and the Fury 2, both made by MSR. They fall into the same weight/price/size category. The Fusion is a convertible tent while the fury appears to be a four-season tent. Given the conditions I'm expecting to face, which tent would be the ideal choice for me? Is the Fury too much tent, is the Fusion too little? Is there another tent that you would recommend? Kevin Portland, Oregon

I having a very tough time finding hiking boots that are comfortable; they all seem to hurt somewhere. I did find a pair of comfortable trail runners, and I'm wondering if I'd have any trouble day hiking in Glacier National Park using these instead of hiking boots or shoes? How much of a difference is there? Laura Jefferson City, Missouri

I looking for a boot that can do just about everything, including hiking, backpacking, mountaineering, as well as a little bit of climbing and bouldering. I would also prefer a crampon-compatible boot that can handle the snow and cold. Any suggestions, besides going out and buying five different pairs of boots? Jeff Midland, Michigan

While preparing for a recent overnight backpacking trip in the Adirondacks, I was surprised at the weight of my loaded pack. Despite having modern "lightweight" gear such as a Western Mountaineering down sleeping bag and the Sierra Designs Clip Flashlight CD, my pack probably weighed 50 pounds. The pack itself, an Arc'Teryx Bora 80, is somewhat heavy, but I needed its size to fit all my gear, including a bear food canister. Do you have any advice for reducing the weight of my pack for an overnight trip?

How do you clean and wash boots? I have a pair of Asolo Cerro Torre's, and they are fairly light boots, but after a trip in the Never Summer Wilderness with lots of rain and mud, they feel heavy. The dried mud adds up, I guess. How can I make them light again? Thanks. Josh Wheeler Denver; CO

Dear Gear Guru, Each year I spend more and more time engaging in technically demanding backpacking, backcountry skiing, and mountaineering trips into the remote backcountry. Due to my exposure, the natural dangers of the mountains, and the probability of accidents, the need for a reliable and durable communications system has arisen. Do you know of a system that has long-range communication capabilities and can withstand the needs of being both portable and durable? Is a satellite phone the answer? As always, I look forward to the wisdom of your responses. Sean Constine

I would like to buy a digital camera to bring on climbing, canoeing, and hiking trips. I had been planning to buy an SLR, but I've recently been tempted by digital cameras and their ability to make you impulsively take snapshots. What factors other then weight and picture quality should I consider? Any help you can give me would be much appreciated. Eric Winnipeg, Manitoba

On extended backpacking trips, does it make sense to pack both a soft shell and a waterproof jacket? Or just take along the rain jacket? Also, since I come from Europe, I'm a little bit confused about what exactly cross-country skiing is. I know what telemarking is (those graceful people on the piste) and also langlauf (with the thin skis), but what is cross-country? Karl Cottenie Leuven, Belgium

I'm going overseas for approximately two years. Unfortunately, there'll be no camping opportunities the whole time. Before finding out I was off, I purchased a new tent, sleeping bag, and backpack. What's the best way to store this gear so it's as good as new when I get back? Gil Beaumont, Texas

What do you know about the "Stealth Can" and its effectiveness? From what I read, it's impenetrable to bears and seals in odors to throw animals off the scent. I like the idea of pre-empting animals from entering cp, rather than "teasing" them with food they can smell but not reach. Mark Ewing, New Jersey

Will boiling or adding chlorine dioxide to water neutralize all organic chemicals (i.e., industrial waste)? Also, should you filter water after using iodine or chlorine dioxide to purify it? Does ViralStop (from SweetWater) kill anything other than viruses? Basically, what's the simplest, lightest way of neutralizing EVERYTHING? Seyil Toronto, Ontario

My sweetie and I are going to Everest's Khumbu Icefall this December, where it's likely to be numbingly cold. I'd like to buy her a toasty parka for this trip and have homed in on Feathered Friends' Icefall and MEC's Frobisher. But will those jackets be significantly warmer than our current 550-fill REI parkas? Should I pay for the 800-fill down or Nextec Epic (apparently the best thing since somebody figured out how to shear a sheep) if I go with Feathered Friends? Or should I be looking at other parkas? Robert Fairview, Oregon

I've noticed a strange paradox in my personality. When I go out to the woods, sitting in some remote beautiful locale I often in want of one thing: a margarita. I've often theorized different devices that I could construct to make a blender but nothing ever made sense. And then I found the GSI hand-cranking Vortex Blender. While I would never take this backpacking (OK, maybe on a day trip to be fancy in front of my exhausted friends) I would definitely be interested in it for kayak camping and car camping—so long as the ice lasts. But does the thing actually work? Or is this really a doomed fantasy of mine? I'm skeptical about the amount of effort this thing would take to crunch up ice. I'd love to pop this out and be a hero. Brian McCarthy Glendale, California

Long time reader, first time questioner: I have long been a fan of liquid-fuel stoves, but recently read your advice about the difficulty in obtaining white gas products abroad ["Do they sell white gas for stoves in Europe?"]. I about to head out on a nine-month round-the-world trip, so would like to take along a reliable canister stove. Do you have any information on which canister stoves will mate with the multitude of international propane canisters that I'm likely to find? Europe and Oceania are my probable destinations. Aaron Green Bay, Wisconsin

I'm interested in testing the triathlon "waters." Can you suggest any good bikes for a beginner triathlon biker, say, for under $1,000? Gary Quito, Ecuador

Do you have any tips for taking a dog on trail? I'm taking my dog on her first trip and want to protect my gear without constantly worrying about it. Are those packs dogs wear a good idea? Will she dage the inside of my tent? Kieran Hosey Frankfort, Kentucky

I'm looking for a pair of Gore-Tex mountaineering pants that I can use snowboarding in the Alps, climbing in rainy Scotland, or cross-country skiing in Norway—all without maxing out my credit card. Any suggestions? Jakob London, United Kingdom

I recently unpacked my tent to be hit by a powerful smell of chemicals and mold, so bad that it gives me headaches and I can't sleep in the tent. Could I just wash it with some mild soap to get rid of the stink? I believe that the ses were sprayed with some sort of leakproof sealant, so I think that's why it smells. Janie Kuala Lumpur, Malaysia

I have been contemplating hiking the Appalachian Trail. Having spoken to a number of through-hikers, I'm told that many are using homemade alcohol stoves made from soda cans. Can you give me your take on alcohol stoves? Have you had any dealings with an alcohol stove known as the Trangia? Mark New York City

How do I wash the sweaty odor from my polypropylene toque? I used Wisk liquid detergent without success. The toque is clean but it still smells badly. I need help. Alexander Do Toronto, Ontario, Canada

Just wondering if you know of any companies that do any sort of maternity outdoor wear, the actual technical garb. I realize that a pregnancy only lasts so long and we already have to add to our wardrobe as it is, but it just so happens that my few biggest months will be the hiking season. I have tried on some of my other gear and think a few pieces will work, but is there a manufacturer who makes stuff that will actually let me and the baby hike comfortably? Charlotte Winnipeg, Manitoba

I have an early-nineties GT mountain bike with a titanium fre. It's still a good-looking, lightweight bike, but its rear U-brake has no real power. Are there any compatible brakes with better grip, or are there any pads with magical powers? Andreas Reno, Nevada

I've read your praise for the Yashica T4 point-and-shoot camera and was attempting to locate a refurbished unit on the web, when, lo and behold, up pops the new Yashica T4 Zoom with a Carl Zeiss Lens (28mm to 70mm). In the wilderness, I've always managed to catch more pictures than fish, and would appreciate your thoughts on a lightweight point-and-shoot for my arduous outdoor adventures. Scott Maple Valley, Washington

Why did Sno-Seal fall out of favor? I kept a pair of heavy hiking boots alive for years with some welt dressing and this stuff. Joe Midland, Texas

I'd like to buy my dad a comfortable bike for exercise and recreation. He doesn't like to be hunched over a bike because he has a temperental back. He also needs a comfortable seat. Is there anything for $800 or less? Joe Edison, New Jersey

I have been searching online for the past few hours for piece of equipment that I believe I saw in some gear magazine (the mail order kind). I will describe it: digital watch, with a compass, stopwatch, etc., and a lighter, signal mirror, and small knife blade with various other attachments. It hung from a lanyard and cost around $100.00 or so. Can you help me find a name for this product or where I might be able to order one? Thanks for the help. Bradford Hammar Charleston, West Virginia

For the second year in a row, we have just returned from our annual spring camping trip in southern Utah, and because of blowing dust, the zippers on the tent are EXTREMELY difficult to operate. Are there any methods for treating "dust-laden" zippers in the field? Also, now that we're back, we've washed the tents, sprayed silicon on the zippers—they're better, but still not like they used to be. Any suggestions? I've been told to buy some "zipper wax" to carry camping next time, but no one here seems to carry it. Thanks! Kirk Astroth Belgrade, Montana

I have a 2001 Honda Civic coupe and will be making a cross-country trip. I looking into a cargo rack to outfit my Civic but I'm not sure how much to spend and which brand to go with (Thule, Yakima, or Saris.) The rack will probably only be used for a rooftop storage bag. If you could suggest a rack model I would greatly appreciate your help. Pete Lptey Fairfax, Virginia

I just returned from Mount Rainier with a rope I had bought specifically for this trip but with the intention of using it for rock climbing. I hate to think of the number of times I saw it go under foot. None of my ropemates put a crampon into it, but I sure don't see myself taking a lead fall with it now, especially 100 feet up. But what about glacier travel? Certainly the guides on Rainier leading newbie mountaineers don't replace their ropes after every trip. Is there anything I can do to physically check the condition of my rope and feel comfortable using it for glacier travel? I truly hate to toss a rope after one trip.

Can you help me pick out the best-value sleeping pad? I'm new to backpacking and need my comfort while sleeping. Heck, I'd take my electric blanket along if I could. I want to find a pad that will be worth the money, but will last a long time too. I can't decide between a less expensive closed-cell pad and one of the inflatable ones. Are the inflatable kind that much better to justify the extra cost? Please help this confused backpacking novice! Kendra North Ogden, Utah

My wife and I will travel overland from Vietn to Turkey in 2003. We cannot decide what sleeping bags to take, as it will be very hot and wet in Vietn during the monsoon season, but cooler and dry when we are in Central Asia. Space, weight, and price are all issues. What do you think? Is there a light, extremely compact bag that will work when hiking in the jungle and also keep us warm in colder, alpine conditions? For the record, the tent we plan to use is a 1.3-pound mosquito net, with a fly and pegs if things get a bit windier. Andrew Darwin, Australia

I accidentally burnt a hole, about one and a half inches in dieter, in my Western Mountaineering Dakota sleeping bag. I'm having trouble finding a place to repair it, and I don't want to do it myself because a brand new bag with a 30-year life span should not have some junky patch on it for the remainder of its working days. Ross Reading, California

What do you recommend for mountaineering in places such as Mount Rainier and Denali as far as headlps and bibs or pants? Would an LED light be better than a regular headlp? I know LED lights last much longer, but what about lighting up the trails? Also, are there any three-layer bibs that you would recommend that are warm, durable, and inexpensive? I like the description of the Marmot Alpinist but it's quite expensive. Are there any less expensive options? Charleton Churchill Pine Grove, California

I have been happily skiing and snowboarding in my Patagonia Nitro II pants for the past few years. However, having recently signed up for a mountaineering course, I was told they aren't designed for mountaineering because of their two-ply, mesh-lined material. I'm confused as to why pants perfectly fine in a skiing environment can't work for mountaineering. I don't want to shell out $300 on another pair of pants! Ken Toronto, Ontario

Can three-season tents be used in the snow? Is it necessary to have a "mountain" tent for snow camping? With a full cover fly, what is wrong with using a three-season tent for occasional snow camping? Lyn Greenhill Roseville, California

I looking for a new lightweight backpack. I never carry over 30 pounds and had decided on the Gregory Reality until I found a new Mountainsmith backpack called the Mountain Guide at a local store. The salesperson told me it was brand new and can't find any information about it. She weighed it for me as the specs didn't include a weight and it ce out about two pounds lighter then the Reality. Does two pounds makes a huge difference in a pack? Kjaristy Salt Lake City, Utah

I recently purchased quite an expensive digital camera. As I'll be backpacking in Montana's Crazy Mountains this June, I'm wondering if it's practical to bring the camera along. If so, what type of bag or protection should I purchase, and where is the safest, yet most accessible spot in my pack to store the camera? Kristin Eden Prairie, Minnesota

If I want to go mountaineering up here in the Northwest, is it enough to slap some crampons onto a pair of Scarpa Rios? I know Rios are great for just about everything else and that they stopped making the Edwardo climbing boot (why, I don't know). Or, should I try some other boot? Jim Trueworthy Coeur d'Alene, North Idaho

Backpacks are a bit of a problem for me because I rather well endowed and the straps get pushed out onto my arms when walking—with all the consequent chafing. Can you recommend a pack with front crossover straps, or an alternative that leaves me unchafed? Deborian Boca Raton, Florida

Where can I find a waterproof video camera, for filming surfing and other stuff? Luke Ft. Myers, Florida

We know your favorite sub-$500 camera is the Yashica T4 Super. But, what are your favorite point-and-shoot cameras for $500 and above? Roy Boston, Massachusetts

Are there any objective tests comparing the hard- and soft-shell products of different gear manufacturers? Yes, there's a huge ount of marketing hype easily available, but beyond XCR's assertion that it's "25 percent more breathable than standard Gore-Tex," there doesn't seem to be any hard numbers comparing materials. This is surprising when you consider how much consumers are prepared to pay for the latest and greatest. Jeff London, United Kingdom

I've been looking to buy a (first) sea kayak. I've tried a number of different models and types and have come up with a tentative short list: the Synergy by Northwest Kayaks, the Corona by Perception, the Sirocco by Current Designs, and the Cortez by Dagger. (I haven't tried the last one out yet but I've included it because of Outside's recommendation.) If you were a six-foot, 190-pond guy (and maybe you are) what boat would you consider to be the best value? I'm only considering plastic boats but I want to get the skinny on workmanship, materials, and design. Are these four companies equally regarded? Are the boats? Brian McCarthy Glendale, California

Several years ago, I bought a pair of "funny-looking" Salomon Adventure 9 boots. They were virtually perfect, but are finally wearing out. Since there's no sign of a similar boot in today's U.S. Salomon line, can you think of an alternative? Ray Cleveland Heights, Ohio

I'm a letter carrier looking for a quality rain jacket to keep me dry in spring showers or pouring storms, all through the New England seasons. Could you please point me in the right direction? Michael Springfield, Massachusetts

On a recent winter excursion in the Adirondacks, my Whisperlite stove failed. The fuel was pressurizing, but it wasn't reaching the ignition wick due to a blockage in the fuel line. Why does this happen in cold weather (our temperature was in the single digits), and how can it be prevented? John Buffalo, New York

I'm beginning to think that today's trend toward Assos-esque padded cycling shorts—padding formerly being the saddle's job—has left me with more saddle sores. This bulky new style only serves to form a bulk of soggy material once the sweat soaks through, causing blisters and general discomfort. Does anyone make shorts or bibs with either minimal padding or something akin to the original chois style? Between the incontinence of infancy and agedness, I prefer not to wear a diaper while riding. Can you help? Clay Wimberley, Texas

I have been backpacking and hiking for many years but I was recently told that for long hikes I should put on my liners, spread Vaseline on them, and then put on my hiking socks. Do you know anything about this or is this a joke? Joaquin Lira Oshkosh, Wisconsin

I'm going trekking around Mont Blanc and have been told not to drink any glacial meltwater because it contains tiny sharp particles of rock, called talc, which can shred one's insides. I have an Aquira water bottle with a two-micron filter, which is supposed to remove microscopic pathogens. Will it stop talc? Hal Berkeley, California

I've been shopping for a car-camping tent for our family (myself, my husband, two kids aged 14 and nine, plus one growing golden retriever puppy). I want a three-season tent that gives us a fair amount of space, maybe with dividers, but the mind boggles with all the choices: nylon, polyester, taffeta, fiberglass, aluminum, this D mesh, that D mesh. I feel like I need a degree in materials engineering to figure this out! Can you help? Tracey Irvine, California

Sage of swag, I'm in the market for a road bike, and looking for direction. Initially, I'll be using it for fitness riding, but I anticipate riding in local road races in the future. I'm a family man with a limited budget for recreational toys. That said, I want something that's going to stand up—a bike that I won't have to replace or extensively or upgrade as I get into the sport in a bigger way. Is a bike equipped with Shimano 105 group the "minimum" I should be looking at? Which models should I be considering, and at what price point? Greg Basky Saskatoon, Saskatchewan, Canada

I'm planning a through-hike of the Continental Divide Trail this summer, and I want to go ultra-light. What's the best tarp to use—the easiest to set up, the best in wind, and so on? Syd Seattle, Washington

Great burning bush of the gear desert, Marmot Precip hat or urban sombrero? I want to buy a good waterproof hat; hoods are cool and all, but they're sometimes a pain in the fanny pack. I have read that you often prefer hats to hoods. So, would you choose the Marmot Precip Safari Hat, the Outdoor Research Seattle Sombrero, or something different altogether? Please help me before I do something dumb—like ask someone else. Jay Eugene, Oregon

I'm a big guy (six feet five, 270 pounds) who's interested in buying a hybrid bike for some urban biking and trail riding (nothing too extreme or competitive). So I need a bike that fits but doesn't cost a fortune. Also, can you explain mountain- and hybrid-bike sizing conventions, especially as there doesn't seem to be a standard way of measuring hybrid bikes?

As a thrifty person with only occasional needs for real cold weather gear, I'm tempted by the down jacket that Land's End sells for $70. Pretty simple design, 650 fill, seems like something that's pretty tough to screw up. Any experience with how this jacket stands up to some of the pricier down parkas from the more traditional gear makers? I'd be using it for an around the cp and belay over-jacket in the Sierras. Raymond Tarto Oakland, California

I want to buy a bike to ride the two miles to work and head downtown on the weekends, about a 15-mile ride. Thing is, I have an attachment to big comfy handlebars, seats, and three-speed internal gears; I cringe at all the "touring" bikes with their rock-hard seats and hunched-over handlebars. I currently have a cruiser and walk it up hills. Can you recommend a bike that won't break the bank? Tiffany Santa Barbara, California

I bought my first pair of snowshoes, and now I need to buy some snowshoe boots. What do you think of Columbia's Excellerator or Bugabootoo boots? Dan St. Louis, Missouri

Man, do I need some bike advice. I have been riding mountain bikes exclusively for the last ten years. I now want to buy a road bike specifically for commuting and exercise. I would like something fun and comfortable to ride, but geared like a road bike for speed. I considering the Marin Tiburon and the Specialized Sirrus Pro, which are in my price range. What should I go for? Lawrence Elk Grove, California

I know you get lots of questions about the best outdoor cameras, but can you recommend a camera that operates well at high altitudes (above 20,000 feet) and in extremely cold weather (around minus 50). I have heard that autofocus doesn't work above a certain elevation. I'm looking for a compact or SLR that is lightweight, resilient, with easily accessible batteries (for efficiency when changing them in the cold), and which will capture the highest-quality images at the top of the outdoor world. Sarah East Lansing, Michigan

I enjoy everything about my new digital camera except for the short battery life, which is especially annoying when on multi-day hikes when the battery might suddenly go dead. Are there any solar-powered products out there for recharging batteries while on the trail? John Swanton, Maryland

Oh Being of All Gear Wisdom, Following your sage advice, I've been looking for a Yashica T4 point-and-shoot to replace my partner's camera, which bit the Grand Canyon's dust on our last trip there. It appears that Yashica no longer makes the T4. Nor do they seem to have a successor model. What's your current recommendation for either a fixed or zoom lens 35mm P&S? Being a photographic troglodyte, no digital cameras allowed. Rob Brading Fairview, Oregon