It's a bird

by Vian Esterhuizen

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0
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0answers
33 views

Zoomlens “pops” around a certain focal length. What failure is my lens showing?

For a while my Sigma 18-50 f/2.8-4.5 lens has been shaking the viewfinder image once in a while. After asking a related question I settled for the explanation that it was the image stabilisation ...
1
vote
1answer
130 views

Why do I get white images with black vertical stripes?

Apparently my 3 year old Canon EOS 550D is fed up with my style of photography and decided to explore abstract arts instead. All it shows on the LCD and stores on the SD card is this: When I ...
1
vote
3answers
134 views

Black spot in image of Panasonic Lumix ZX3

I've bought a used Panasonic Lumix DMC-ZX3, but the images show a dark spot near the center. It's more visible when zoomed in (first picture below), but it's also visible otherwise. It seems to be ...
6
votes
2answers
297 views

What is the cause of this unusual concentric blob defect (taken in below zero conditions)?

My brother took a number of pictures in the alps recently, and a few of these showed defects similar but not identical to the one below. The temperature was -14 C which doesn't seem unreasonably ...
1
vote
2answers
122 views

Lines through my images - help

I have a recently purchased Nikon 5100. Since purchase there is a series of two lines (in the same place) in the frame that show up on the pictures. Any guesses as to what they are and how I can get ...
1
vote
0answers
45 views

Weird Corruption in Overexposed Areas

When shooting photos with my friends's mobile phone, overexposed areas get weird horizontal lines while well-exposed areas look fine. Sometimes it also has some moiré-like color patterns. What ...
2
votes
6answers
526 views

High Chromatic Abberation with Pentax f/1.8 50mm lens

I recently bought a Pentax K-50 in a set with two lenses (18-55 & 50-200) as well as a 50mm fixed focal length lens. The camera is great but I am extremly disappointed in the lenses. Two out of ...
2
votes
1answer
67 views

Lighter section in photograph

I recently took pictures of a lightning storm using my camera phone (Samsung Galaxy S3). In several of the shots where I managed to capture lightning, a lighter (brighter?) vertical section sometimes ...
6
votes
4answers
2k views

Why is my lens only somewhat sharp near the center and very blurry on the edges?

I bought a canon 50-250mm IS lens (for my T1i), maybe two years ago and haven't used it much, but whenever I do, I always regret using it. Pictures are blurry, the depth of field too shallow and so ...
12
votes
5answers
2k views

Photo stretched at corners?

Can anybody tell me why the heads of the two women are stretched in the corners? What is the name of this defect and how could one avoid it? I'm not a photographer (though becoming one is one of my ...
11
votes
1answer
3k views

Why are my results with a variable neutral density filter poor?

I bought a inexpensive variable neutral density filter, this ND2-ND400 variety. I wasn't expecting a whole lot because of the very low price point, but I think I'm either using it incorrectly or my ...
5
votes
3answers
2k views

How common are hot pixels on new cameras?

How common are hot pixels on new cameras?! I read that people may check up to 5 cameras at stores to actually find a perfect one, is this true? so how commons is this? what is the chance of getting a ...
4
votes
1answer
309 views

What is meant by 'centering quality'?

I'm reading lens reviews and I have encountered the term 'centering quality' a few times (e.g. http://www.photozone.de/sony_nex/720-sony50f18nex?start=1). What does this term mean? What are the ...
5
votes
1answer
589 views

What defect is in this image?

I shot this image on a GoPro camera in time lapse mode. It was at ISO 100, f/3.6, 1/950sec. I also happened to be moving the camera at very high speed during the shot. What is the ligher horizonal bar ...
4
votes
2answers
243 views

Is having a lens with vignetting a real world negative for portrait lenses?

After reading this answer for another post: I don't mind the vignetting as it actually improves the look of portraits however if you're doing astrophotography what's the point in a lens that's ...
4
votes
3answers
691 views

Why is there a strange white spot on all of photos from my Zenit-B SLR?

I've taken some photos with my old Zenit-B camera. And I have some strange white spot on all of the photos in the upper right corner. Sometimes it is not too recognizable, but it is everywhere. ...
6
votes
1answer
254 views

What is the defect rate of lenses?

I've read a lot of reviews on sites like photozone.de, the-digital-picture.com and the likes and found that quite a few of their review samples turn out to be defective (including the premium 'L' ...
9
votes
1answer
363 views

What are these lines through my images?

I have these lines or streaks across many of the images on this roll I had developed. I can see the same lines on the negatives as well as the prints. The lines are in the exact same spot across I ...