Alley in Pisa, Italy

by Lars Kotthoff

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6
votes
4answers
898 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 ...
3
votes
1answer
255 views

Was the background blur in this image done with a Petzval lens?

I am interested to know how the background blur in this image was done. Is it a petzval lens?
-2
votes
4answers
531 views

What causes blurred/non-sharp images taken of stable objects?

I know about two important reasons which are motioning or shaking camera/hands and dust and dirt on you lens but if you have fixed them and still you have blurred/non-sharp results, what can be the ...
5
votes
3answers
4k views

Why does my Canon 7D get blurry pictures with a 70-200mm f/2.8 IS (series 1)?

I'm wondering if it's normal for a Canon 7D with its crop sensor to get unsharp pictures with a 70-200mm 2.8? I just bought a used 70-200 and it seems a little bit blurry. Maybe it needs calibration? ...
3
votes
2answers
678 views

All my photos were blurry

I recently did a shoot of a baby and my 6 year old son, and I got some fantastic shots that were super sharp. I then did another shoot of a 6 year old and toddler and every single photo was slightly ...
6
votes
1answer
1k views

Which Lensbaby Sweet 35 or Edge 80 effects are harder to reproduce post-processing?

I want some suggestions from Lensbaby users. I have the plastic optic, double glass and fisheye optic. I use the composer. The recent new optics: Sweet 35 and Edge 80 seem very intriguing and I ...
15
votes
6answers
5k views

How does background blur (bokeh) relate to sensor size?

This is a somewhat theoretical question. Suppose I first take a photo of a subject using a full frame sensor DSLR, with a given lens (say 50mm prime lens at f/3.5). Now suppose I exchange the camera ...
6
votes
5answers
1k views

Would a large aperture lens help against low light subjects being blurry?

I want to get nice shots with ambient light (meaning the natural light in the room of restaurants, living room with x-mas tree lights only...) so I can catch the glow of light on people’s faces as ...