Time to be with your loved ones

Time to be with loved ones

by sat

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361 reputation
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visits member for 3 years, 8 months
seen Oct 15 '12 at 16:36

Sep
15
answered How do I take pictures of planes flying at an airshow?
Aug
16
awarded  Yearling
Nov
13
comment Why does opening photos in Windows preview result in a yellowish tint?
Is the "work" computer colour-managed? Specifically does it have a monitor colour profile set?
Nov
13
answered How do you make the most stunning sunrise and sunset photos?
Nov
11
answered How can I make this image appear OK on an average monitor?
Nov
4
answered How to improve focus accuracy?
Nov
4
comment Can I buy gray market camera equipment from reputable web sites in the US?
I use B&H and buy their none-US warranty versions, because I'm also not in the US. Would Cannon (CPS) give me hassle if I had a warranty issue and I wasn't in the US? Don't know, it's never happened. I travel professionally to shoot though, and I would take a very dim view if they gave me trouble when their gear broke in some foreign place. People travel. I think the B&H stuff comes with an "international warranty", probably more use than the US version to me at least. B&H are excellent and can ship quicker than local pro shops.
Nov
2
comment Do DSLRs play games with ISO when used with fast lenses?
I think you're missing the point. Which is... if you're precisely in Av mode, lens wide open at f/1.2, ISO100, whatever shutter speed... because the sensor design is not 100% efficient, you will get slight under exposure. Which you would notice. So they bump up the sensor gain ("ISO"). The reason people are a little unhappy about it, as explained in the article, is that you're not getting all your f/1.2, which is a shame if you pay for it. However the effect appears marginal, so marginal in fact that no one noticed it before.
Oct
22
comment What are the copyright issues when selling photos of public art?
The same restrictions are used in the UK by the National Trust, for example. You can't sell shots of any of their stuff.
Oct
16
awarded  Supporter
Oct
16
comment How to take great night shots?
ISO is a measure of sensor gain. The higher it is, the more amplification you're giving to the various types of sensor noise. For one body, one EV, you will see less noise for a lower ISO. This is easy to see for yourself and the physics is straight forward.
Oct
16
comment When do the differences between APS-C and full frame sensors matter, and why?
In my experience if you try mixing formats then it can be annoying, or at least I found it so when I used an APS-C body for a while as a backup.
Sep
21
answered How to calibrate a printer and monitor if neither are very good?
Sep
18
comment What else changes with zoom?
If you adjust both zoom and distance to keep the subject the same size, then the subject magnification is a constant. If you also keep the f-stop the same, then your DOF is in fact unchanged. So your obvious answer is not correct.
Sep
18
comment What else changes with zoom?
Another demonstration is the standard video shot, where the camera moves in as the operator zooms out, keeping subject size constant but appearing to "expand" the background through the shot. This is the main utility of zooms other than cropping: getting the perspective you want.
Sep
11
answered What is the optimal order of post-processing steps?
Sep
4
answered What steps should I take if my photo is used without permission?
Aug
29
answered Why can only certain Canon lenses be fitted with an extender?
Aug
25
comment What are Color Profiles and where would I find information on using them properly?
You get more "accuracy" within a narrow gamut, as the colours which are in-gamut are closer together. You're making a trade, hence you need to be sure you want to. Adobe RGB (1998) is with us in my view mostly for historic reasons. ProPhoto is a good match for many cameras and is supported by ACR. My recommendation would be to only switch to ProPhoto if you're seeing important out of gamut warnings on sRGB, and even then you'll need to map those colours back for output. None of this is particularly helpful for people with only a "vague idea" of Colour Management though.
Aug
21
awarded  Teacher