My roommate's looking for a $4-600 SLR + Lens combo. [more inside]
posted on Jul 22, 2008 - 13 answers

There's a photograph of a Persian gold finial resting on a highly patterned cloth on p. 56 of the August 2008 National Geographic (directions to find it online inside). The finial is in tack-sharp focus with significant depth of field while the entire cloth is pleasantly blurred. Shenanigans? I would love to know how this photo was taken. [more inside]
posted on Jul 19, 2008 - 20 answers

Want to try out lenses, tripods, filters, etc for my new Canon 40D. Nice camera, btw!
posted on Jul 5, 2008 - 9 answers

I'd like to buy a telephoto lens for my Nikon P5100 . There's a bunch on ebay & Amazon - Tokina, Opteka, Fotodiox - for between 40 & 100 bucks. Are any of these lenses/ brands worth their dollar? ($100 is my max, so the $250 Nikon branded lens is not in the running.)
posted on Jun 15, 2008 - 3 answers

Inexpensive, basic lens for a Nikon D40? [more inside]
posted on May 29, 2008 - 10 answers

Can anything interesting be done with a broken SLR zoom lens? [more inside]
posted on May 28, 2008 - 10 answers

One of the lenses of my expensive pair of sunglasses keeps popping out. Can I fix this myself? [more inside]
posted on May 22, 2008 - 4 answers

Getting a DSLR today. What lens options should make a good set to take the plunge? [more inside]
posted on May 5, 2008 - 20 answers

Upgrading to a DSLR camera for the first time: how useful will an additional lens be? [more inside]
posted on Apr 24, 2008 - 22 answers

Suggest online or DVD resources for a new filmmaker to learn about lenses, film formats, shot composition, camera moves, dialogue staging, and other aspects of cinematography & directing? [more inside]
posted on Apr 17, 2008 - 7 answers

What can I do with my old F mount, non AE Nikkor lenses? I have the Nikkor monoscope adapter that works very well with the 200mm. What to do with the 28mm, 50mm, 55mm macro, 135mm and 500mm mirror (universal mount) lenses?
posted on Apr 1, 2008 - 8 answers

What caused the light to do the weird radial effect in my picture? I'm guessing it's the UV HAZE filter I leave over my lens? Does the effect have a name? Like some weird form of "blooming"? Shot with a Canon Rebel XTi with a 28-135mm USM IS, 6 second exposure.
posted on Mar 30, 2008 - 14 answers

What's a good Canon lens for family photographs? [more inside]
posted on Mar 15, 2008 - 17 answers

I am looking for an estimate of the overall size of the SLR lens market (U.S. or world) and/or market size for filters (polarizing etc)...my google-fu has failed me! [more inside]
posted on Feb 20, 2008 - 7 answers

Lens 101 for new Pentax K100d DSLR owner. [more inside]
posted on Feb 6, 2008 - 13 answers

What lens to buy? [more inside]
posted on Jan 30, 2008 - 23 answers

PhotographyFilter: How can I improve the dynamic range of photos at the time they are taken without resorting to curves and levels tools in photoshop? [more inside]
posted on Dec 12, 2007 - 25 answers

What are the technical obstacles to making 'smart' spectacles which would function like the lenses in the human eye? [more inside]
posted on Dec 8, 2007 - 14 answers

I bought the Pentax K100D dSLR, partly on recommendations from here, and I love it. I have the 18-55 kit lens and the 50-200 zoom lens, which I mostly use. Now I would like to buy a faster in-between zoom, somewhere from 24-28 at the low end to 75-135 at the high end. I am trying to figure out whether to buy a Pentax, Tamron, or Sigma lens and am getting confused with all the contradictory reviews. The Tamron 24-135 is praised to the skies by some and trashed by others. I am leaning towards the Tamron 28-75 but would like something closer to 100 mm. Any advice?
posted on Nov 22, 2007 - 7 answers

What can I do with a "ruined" autofocus SLR zoom lens? Anything cool/neat I can turn it into? Any fun optics demonstrations I can do with the lenses inside? [more inside]
posted on Nov 20, 2007 - 5 answers

Does a better lens automatically mean a better digital camera? [more inside]
posted on Nov 1, 2007 - 15 answers

I'm heading to the States in a month, and would like to pick up some Canon EF lenses for my film body (now) and DSLR (later). Interests and budget are after the jump. [more inside]
posted on Oct 18, 2007 - 14 answers

Please give me your reccomendations for some nice-looking coloured contact lenses that are comfortable for full time wear. [more inside]
posted on Aug 14, 2007 - 2 answers

What would be a good alternative all purpose lens for a "professional amateur" photographer who has a Canon 20D, currently equipped with only an EFS 18-55 ? [more inside]
posted on Jul 25, 2007 - 19 answers

What's your favorite Nikon-compatible macro lens? I'm completely new to macro photography (and still pretty new to photography in general, having purchased my first DSLR a little over a year ago), and I'm leaning towards the Nikon 60mm f/2.8D AF, largely because of the price differential between this and some of the other Nikkor macros. Anyone have any great experience with some of the makeshift macro lenses (using extension tubes, reversing rings, etc)?
posted on Jul 23, 2007 - 9 answers

What Wide-Angle Lens should I get for my new Mini-DV camcorder? [more inside]
posted on Jul 5, 2007 - 0 answers

Buying a used dSLR lens via craigslist: What to look for? How much to offer? [more inside]
posted on Jun 12, 2007 - 8 answers

Prospective DSLR user ISO decent budget lenses for shooting babies, beautiful scenery, (and maybe) blooms. [more inside]
posted on May 8, 2007 - 23 answers

I'm going to be purchasing a DSLR camera, and am looking for some input on which lens(es) to purchase. [more inside]
posted on Apr 26, 2007 - 45 answers

What type of all-in-one bag would you use to fly (economy across the country) with Nikon D-80 + MacBook Pro 15" (or equivalent equipment) that is comfortable, easy to store for flight, and functional? [more inside]
posted on Apr 22, 2007 - 13 answers

Eye Contacts Advice: I have tried Frequency 55 Toric. They often feel like they are suffocating my eye balls and the astigmatism correction is just as bad. [more inside]
posted on Apr 18, 2007 - 10 answers

What kind of tripod mount ring do I need for a Canon EF 100-400mm f4.5-5.6L IS USM Telephoto Zoom Lens? I bought a used lens, but it's missing the tripod collar mount ring. It looks like Canon makes a few different mount rings, and I can't figure out which one I need for this particular lens. Does anybody know? Even better, if you know where I can get one on the cheap. If there's an off-brand solution out there, I don't care who makes it as long as it fits my lens and works well.
posted on Apr 2, 2007 - 8 answers

I am planning on buying my first dSLR camera, a Pentax K10D. What would be the best lens to go with it? I can only afford one, so I was going to get the Pentax 24-90 zoom but I am not able to find one. What other similar lens would you recommend?
posted on Jan 30, 2007 - 9 answers

I'm interested in fitting odd lenses -- and making custom lenses -- to/for digital cameras and digital video cameras. I'm not terribly concerned with the electronic side of things, so you shouldn't be either. What I'm looking for is a crass/crash course in optics -- something (a book, a video, a class, a kit) that will teach me the basics of optics and allow me to force photocopier lenses, telescopes, and microscopes onto unsuspecting recording devices.
posted on Dec 28, 2006 - 12 answers

How do I remove a contact lens that has stuck under my eyelid? [more inside]
posted on Nov 3, 2006 - 13 answers

Why does a good camera use more than one lens? and what is the physics phenomena associated with it?
posted on Nov 1, 2006 - 14 answers

Let's say I find a shiny spherical object and under point lighting, I move it very close to my eye. I then focus on the bright spot, but focus at a distance of 1-2 feet until the patterns are in focus. At this point, it looks like a bad microscope. Am I looking at part of my own eye? Is this a documented phenomenon I could read about?
posted on Oct 21, 2006 - 19 answers

I've been having a bit of problem getting my WB set just right on my new 30D. I think the canon's have a tendency to AUTOWB a bit too cool for my taste. I'm thinking about getting an Expodisc or something like it. Do they really work as well as the advertising says in setting your custom White Balance? Could I achieve the same effect by putting tissue paper or tracing paper on the lens while setting Custom WB? Help!
posted on Oct 18, 2006 - 8 answers

This is a two part question: Which every day lens should I buy for my dSLR, and what other camera accessories should I get? There is [more inside]
posted on Oct 11, 2006 - 25 answers

I have a Canon Powershot A520 camera, and I managed to break the retractable lens. [more inside]
posted on Oct 5, 2006 - 6 answers

I'm looking for opinions on the Canon 17-40mm f/4 L series lens. [more inside]
posted on Sep 29, 2006 - 14 answers

What's the best way to clean a camera lens that is recessed into the camera's casing? [more inside]
posted on Sep 25, 2006 - 6 answers

Budget first-lens wide-angle options for a Canon 350D purchase? I'm looking at buying the latter, and want to find the most bang for few bucks on the former. [more inside]
posted on Sep 11, 2006 - 19 answers

Will a Vivitar 100-400 f4.5-6.7 autofocus zoom lens (originally for a Minolta 505si) fit on any digital cameras? [more inside]
posted on Aug 31, 2006 - 8 answers

Looking for 35mm lens rental in Stockholm, Sweden. [more inside]
posted on Jul 28, 2006 - 5 answers

I just bought a new DSLR camera (Nikon D50). I love it. But the bag I bought for it has the camera going in vertically, lens-first, which means all the weight of the camera is pushing on the lens. Is that bad for the lens? [more inside]
posted on Jun 25, 2006 - 8 answers

Can this contact lens klutz re-use a lens? [more inside]
posted on May 25, 2006 - 6 answers

I use Miraflow as my daily contact lens cleaner. I use either AOSept or AMO UltraCare as a disinfectant. All three products have completely disappeared from the shelves, in stores and online. What is going on, is anyone else experiencing this, and can anyone suggest an alternative for cleaners or disinfectants - even my eye doctor's doesn't know what's going on.
posted on May 12, 2006 - 9 answers

Attention optics geeks: Will a flat water/air port affect a lens' minimum focus distance? [more inside]
posted on Apr 20, 2006 - 6 answers

Need advice on Canon SLR Lenses [more inside]
posted on Apr 20, 2006 - 15 answers