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1500 questions
43
votes
3 answers

What does it really mean that telephoto lenses "flatten" scenes?

This is another perspective distortion question. I understand that perspective distortion is primarily a function of capture and viewing distance, but I am still working on fully understanding the causes of the "flattening" of scenes that is…
cbaz
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10 answers

What can a fisheye lens be useful for?

I have a variety of lenses in my camera kit. One that I do not have, and has me curious, is a fisheye lens. I mostly understand what it does: it captures an image with distortion similar to what you see through a door's peephole. Given the…
Grant Palin
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12 answers

Any good tutorials for learning how to post-process images?

I don't really know where to start with post-processing my images. I normally just straighten, crop and sharpen. Do people know of any good resources on the internet for getting a grip with Photoshop and similar tools?
Noel M
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43
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12 answers

Is digital zoom really useful?

I've always wondered what is the use of digital zoom, apart from viewing the subject clearly on the LCD display. We can take a photo with the optical zoom and crop the photo to the desired region of interest. How does a photo taken with digital zoom…
AIB
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42
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2 answers

What is the point of the depressible peg on a quick release plate?

Many tripod quick release plates have a plastic or metal peg near the screw. You can press down on the peg, and then when you release it, it pops back up. I've looked at photos of many camera bottoms, and I haven't seen any camera that has a hole…
pacoverflow
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42
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3 answers

How do you photograph a lunar eclipse?

Tonight is the night of a lunar eclipse, and I'm curious, what kinds of tips do you guys have for photographing one? I'd like solutions for both consumer-grade equipment, as well as DSLRs, so that everyone can benefit from the information. For those…
PearsonArtPhoto
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42
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8 answers

What should I consider when using DSLRs in cold weather?

What temperatures can consumer-level DSLRs and lenses typically handle? Are there any precautions one should take too minimize potential problems (e.g. condensating water)? What about moving in and out of the cold multiple times a day? Also asked…
Caramdir
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42
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16 answers

How can I backup my photos while travelling?

I'm going travelling around the world for a year in September and am already panicking about how best to send my photos home while in various countries. Requirements: I only need to backup JPEG files (I don't shoot RAW but that's another thread ;)…
matt burns
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42
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5 answers

How many actuations are "too many actuations"?

When looking at used camera bodies, a question that comes up a lot, is "how many shutter actuations, or clicks, does it have?" What I am wondering is, how many is too many. In other words, is there a reference for knowing when a sensor is more…
BBischof
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42
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3 answers

Why is a 1" sensor actually 13.2 × 8.8mm?

I'm wondering how sensor sizes are calculated. The Sony RX100 reportedly has a sensor size of 1" which is 13.2 x 8.8 mm according to the press release and various sites. How does that work? That's a pretty small inch. The Wikipedia page on sensor…
Carsten
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42
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5 answers

What should one look for when buying a used lens?

When buying a used lens, what should the buyer check? Other than looking for obvious physical damage on the outside of the lens, what else should be inspected to identify the condition or quality of the equipment?
ahockley
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41
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7 answers

What is the best way for a hobbyist to start generating income from photos?

What is the best way for me to look into the feasibility of selling my shots (hopefully including some sort of feedback on my technique) and examples of places where I can have someone manage the selling/storefront? I'd like to potentially expand…
D.N.
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41
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8 answers

If an image is rotated losslessly, why does the file size change?

I was searching for methods of lossless image rotation and happened upon this question which explains it rather nicely: Are "Windows Photo Viewer" rotations lossless? So I created a 256×256 JPEG with random pixels (Photoshop cloud filter) and then…
oscilatingcretin
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6 answers

Should I get DX for my APS-C camera, or FX lenses in case I upgrade to full-frame in the future?

I recently bought a Nikon D90 camera body, which has a "DX" APS-C-sized sensor.. Within the same budget, should I go with DX lenses or should I get full frame lenses in case I upgrade to a full frame body in the future, when they become more…
jfoucher
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5 answers

What's the point of capturing 14 bit images and editing on 8 bit monitors?

I am bit confused. If my DSLR is capturing 14 bit image while shooting RAW. Don't I need a 14 bit monitor also to take full advantage of capturing in RAW? Whats the point of capturing an image in 14 bit and open and edit it only 8 bit depth monitor?
user1187405
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