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22,883 reputation
465126
bio website 365project.org/imrelumiste
location Finland
age 35
visits member for 3 years, 9 months
seen 9 hours ago

Jan
21
answered Why aren't devices with two cameras more popular?
Jan
19
reviewed Approve darktable tag wiki excerpt
Jan
19
reviewed Approve darktable tag wiki
Jan
19
comment Where can I find a canonical list of the latest firmware for Canon cameras?
@Hugo Note that the list covers recent updates, not just recent models, so even if the 1Ds were to be updated, it should appear there.
Jan
14
revised What is the purpose of the small meter behind window on a lens?
edited tags; edited title
Jan
13
revised What kind of filters might have been applied to these photos?
edited tags
Jan
10
comment Will Canon Cameras fit all Canon lenses?
What about EF-M lenses?
Jan
9
revised Why would one shoot a fully blurred picture?
added black and white option
Jan
9
revised How can I take shallow depth of field photos with a point-and-shoot camera?
link to bokeh vs blur comparison
Jan
8
comment What can I do about Pentax superzoom 18-270 autofocus problems?
Have you tested with any other lenses to make sure that the camera body is not the faulty part?
Jan
5
comment Do bigger focal lengths capture more light?
Even the kit lens has an increasing aperture (especially if you consider kit lenses with longer zoom ranges, e.g 18-135), it just increases somewhat slower than focal length. It should be mentioned though that it's the effective aperture discussed here; physically, the blades are placed on the optical path somewhere where the light rays are condensed (otherwise there would be no room for aperture blades when they are fully open). In variable aperture zooms, the width of rays at aperture depends on zoom; in fixed aperture lenses, it doesn't.
Jan
3
awarded  Nice Answer
Jan
3
reviewed Leave Closed What were important things you took into account when purchasing your first camera and lens?
Jan
3
reviewed Reopen What settings, especially shutter speed, should I use for stage performances?
Jan
3
revised What mount would fit a bare 50mm diameter, 2mm thick filter?
added 69 characters in body
Jan
3
comment How to calculate the optimal pinhole size?
@MattGrum if you could describe how increasing/decreasing hole size affects those properties, that'd be awesome (and also an answer to what I'm asking here)
Jan
3
answered What mount would fit a bare 50mm diameter, 2mm thick filter?
Jan
3
revised How to calculate the optimal pinhole size?
added 210 characters in body; edited tags
Jan
3
comment How to calculate the optimal pinhole size?
All figures should be in same units as you want the result in (mm seems to be most common; 550 nm = 0.00055 mm)
Jan
3
asked How to calculate the optimal pinhole size?