Napioa - Wind Origins

Napioa - Wind Origins
by octopus                

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Jun
28
reviewed Approve What techniques should be used when attempting bird photography?
Jun
28
comment Macro photography with an ultra-wide lens and extension tubes?
I am surprised too. I am equally suspicious because my 35mm macro requires a focus distance of about 1cm from the lens (13cm from the sensor) for 1:1 magnification.
Jun
28
comment Is pincushion or barrel distortion really all that bad in a lens?
@jrista - That was the point of my comment. Sometimes an aberration has no negative impact. What we can rank is the effort required and consequence of correction when it needs to be corrected, as judged by the photographer or photo editor.
Jun
28
comment Is pincushion or barrel distortion really all that bad in a lens?
@jrista - I never said anything about artistic value. All these points are about how correctable (and the impact of correction) each aberration is. I did note that distortion (the subject of the question) can be left in, meaning it may not be a problem for a particular photo.
Jun
27
comment Is pincushion or barrel distortion really all that bad in a lens?
Field curvature can be seen as a form of spatially-dependent softness, so yes, it is worst than distortion. Purple fringing is usually avoidable and highly localized, so I prefer it than distortion though.
Jun
27
answered Can I configure the D7000 to perform lens distortion corrections on the embedded JPEG in the RAWs it saves?
Jun
27
answered Is pincushion or barrel distortion really all that bad in a lens?
Jun
26
comment How to speed up autofocus on moving subjects under low-light conditions?
Should you not find an answer (as may be at the limit of what your camera and lens can do), I suggest the if you cannot beat them, join them approach: Manual focus, smallish aperture and slow shutter-speed (but still above 1/focal-length). That way you'll get the blur from the dancer's motion on a sharp background which will emphasize their movements.
Jun
25
comment How do I use the Chromatic Aberration correction tools in Lightroom?
Interesting about the profiles. Out of curiosity, is it not possible to only use part of the lens profile's correction? Ideally, CA and vignetting can be separately removed from distortion because removing distortion can be detrimental to image quality and affect critical composition.
Jun
25
comment Nude photography, any advice?
Those are a lot of complex questions. Are you willing to pay for the answers? If so, check out moneyshotsbook.com/MONEY_SHOTS.html - It is incredibly detailed and covers everything on the topic. No affiliation with the product but the author was a guest writer for a publication of mine.
Jun
25
comment Why is dark-frame subtraction on my Pentax camera shorter than the exposure time?
On some cameras there is a cap. So that it does not take too long, I guess. IIRC, on the K10D and K20D it was 30s. I have not received a K-r yet so I cannot confirm that it is normal. The user manual is rarely helpful with such details.
Jun
24
answered Can I take my monopod in my carry-on lugagge?
Jun
24
comment Canon SX230 HS or Sony Nex 5
That is a really close call! The handling on the S95 is a little better and the performance is quite close. Except the S95's lens does not let as much light in as you zoom in. Both cameras feature stabilization and are equally good as far as I can tell.
Jun
24
comment What photo blogging service could you recommend?
Unless they make their message and offering clear, they wont be doing much contending though. If they are smart, they will probably figure it out sooner or later!
Jun
24
comment D5100 or D90 ? Which one to buy as the first DSLR?
See the answer to this question: photo.stackexchange.com/questions/4937/… - The reasoning is the same, just replace T2i with D5100.
Jun
24
comment What is a good lower-cost alternative for the Nikon 85mm f/1.4 lens?
The easiest way to get disappointed is not to buy what you want. Maybe you can finance it by selling some lesser used lenses or other object you get little use from.
Jun
23
awarded  Nice Answer
Jun
23
comment How can I get more of this macro photo in focus?
@rfusca - Jinx! Although apparently I had a 29s lead ;)
Jun
23
comment How can I get more of this macro photo in focus?
@Billy - Wrong. Shutter-speed has no effect on flash since the burst of flash is very short compared to the shutter-speed. You will only get a difference due to ambient lighting.
Jun
23
answered How can I get more of this macro photo in focus?