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Questions about a specific problem or issue, often dealing with a lens, camera body, image sensor, lighting equipment, or software specific to photography.

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7
votes
3answers
642 views

Why does my external flash use Ni-Cd and Ni-Mh batteries so quickly?

I've recently purchased a Canon 430EX II to use with my 550D and it's great but I'm having battery issues. I've been trying to use 2× 800mAh Ni-Cd and 2× 2500 mAh Ni-Mh (all rechargeables, the 800mAh ...
9
votes
5answers
656 views

What conditions hold up continuous shooting?

Sometimes when attempting to shoot continuously (at high speed) with my Nikon D90, something appears to block the smooth interval between shutter releases. I have it set up to take RAW and JPEG ...
1
vote
1answer
386 views

Why is the mirror on this old camera stuck halfway? [closed]

I received this old Minolta along with a lot of other camera related stuff that some friends weren't able to sell at a garage sale. I'm not really interested in using it, but I'm curious as to why ...
5
votes
2answers
1k views

Is it sensor damage? Or dust?

I have been trying to shoot partial solar eclipse today with my Nikon D3100, and later noticed this spot on images: http://pix.academ.org/img/2011/01/04/70baea815d1557594f096a82ab05704f.png I do not ...
12
votes
6answers
22k views

Why do images get “corrupted”?

I have had my Nikon D40 for a while, and some of the pictures are coming out distorted. Two examples are below: So my questions are: How do I fix them after the fact? - i.e. after they have been ...
12
votes
3answers
509 views

How to prevent zoom-creep?

The Nikkor 18-200mm VR lens creeps until fully extended if pointed vertically down. This is preventing me from using it on a rostrum camera. Is there a piece of equipment or a simple (and ...
5
votes
3answers
2k views

Why does my 420EX Speedlite sometimes fail to start up?

I have a Canon 420EX Speedlite that sometimes won't start up. When it's not working, it behaves as if it didn't have any batteries in it... just totally dead. The odd thing is, it doesn't seem to be ...
4
votes
3answers
4k views

What should I do when I get “Lens Error Restart Camera”? [duplicate]

Possible Duplicate: What should I do about Canon PowerShot “Lens error, restart camera”? I have a PowerShot SX20is that started to throw this error out of the blue: Lens ...
15
votes
4answers
4k views

How can I avoid soft dull “spots” in my pictures?

Recently, I've been doing a lot more photography, particularly with my 100-400mm telephoto and 16-35mm wide. I am skilled enough that I can capture the shot mostly as I want with just the camera gear, ...
9
votes
8answers
6k views

Why are my Lightroom exports too dark in Flickr?

I've been using LR3 for a while now and have noticed that when I export a photo to JPG and upload it to Flickr it ends up slightly darker. The exported photo is ok, it's the image when viewed through ...
7
votes
5answers
5k views

Why is my Nikon 18-200 lens not focusing at higher focal lengths?

My Nikon 18-200 lens on a D300 camera will not focus when it is zoomed between 135mm and 200mm. Is there any tips on how to solve this besides handing it in to a photo store?
11
votes
1answer
924 views

How can you tell if a lens is having problems with back focusing?

I recently bought a Canon EF 24-70/2.8L to use with my 450D and I suspect that it is constantly back focusing. Is there any way of determining if it is something wrong with the lens or if it is a ...