Tagged Questions
10
votes
2answers
288 views
Max aperture on zoom lenses - stepwise or linear?
When zooming with lenses without a fixed max aperture, the change in aperture* that the camera displays is stepwise, usually in steps of thirds. But, is the max aperture really the same all the way as ...
1
vote
1answer
2k views
Why does my aperture setting change as I zoom the lens on my Nikon D90?
I am new to the photography field and this something which I am not able to understand. I am playing around with my Nikon D90 along with its kit lens (18-105mm).
While reading about Depth of preview, ...
3
votes
4answers
385 views
What is the technical name of the lens which has a fixed aperture but zooms?
What is the technical name for a lens which has the same maximum aperture throughout the entire zoom range?
2
votes
1answer
370 views
How does Sunset Mode affect exposure on Canon A800?
I was puzzled recently when I did some test shots with my Canon A800 by shooting the same (landscape) scene with and without full optical zoom and with the camera program set to SCN - Sunset. (Sunset ...
7
votes
1answer
863 views
Why does the maximum aperture change with focal length? [duplicate]
Possible Duplicate:
Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range?
It is rather common with zooms that the maximum aperture changes (in fact, ...
9
votes
2answers
1k views
Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range?
Why does a camera's maximum (allowed) aperture get smaller when you increase its zoom?
15
votes
8answers
685 views
Would a prime be redundant with a fast zoom?
Now that I am finally getting a fast zoom (Tamron 17-50mm 2.8) I've been considering a fast prime to go with it, specifically a Sigma 50mm 1.4. Despite its shortcomings, it still does really nice ...
6
votes
4answers
474 views
Is depth of field and bokeh influenced by distance to the subject?
I know that the aperture size has a direct effect on the depth of field.
However, what about distance to the subject? Let's say I took two pictures, one at 24mm and one at 70mm, using the same lens ...
