Napioa - Wind Origins

Napioa - Wind Origins
by octopus                

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

Reputation
105,254
Next tag badge:
1755/1000 score
191/200 answers
Badges
4 227 376
Newest
 Enlightened
Impact
~4.6m people reached

Nov
26
comment Should I get the Sony Alpha a7r II or a DSLR?
The basics (ergonomics etc.) are merely different with the A7RII, not necessarily inferior. The camera also pushes well past what Canon and Nikon DSLRs are capable of in many areas. It's not just for "family purposes" many professionals are using it, the official photographer for the White House now uses an A7RII.
Nov
24
comment Why are larger sensors better at low light?
It's important to distinguish between per pixel noise and per image noise. Per pixel noise is heavily dependent on the pixel size, per image noise is most dependent on sensor size (pixel size has a very small influence). However since most people view and print images, not pixels, per image noise is a much more relevant measure, therefor it really is the sensor size that matters most.
Nov
24
comment Why are larger sensors better at low light?
@PhilipKendall Apart from that statement in the first paragraph the rest of the answer is correct, it would suggest just removing that part.
Nov
18
comment Visible pixels of glow on photos with long exposure
The Nikon D7100 doesn't have a CCD sensor, and this type of blooming doesn't happen with CMOS.
Oct
29
comment How can I avoid soft dull “spots” in my pictures?
@MichaelClark That's good to know, but I think given the high cost of sensor replacements (yes some manufacturers insist on replacing the entire sensor assembly if you scratch the glass) they're just trying to avoid any liability if someone drags a piece of grit across their sensor. I can't see any reason the pads themselves would not be suitable when used correctly.
Oct
28
comment Are there lenses f/1 or wider that work on EF or E-mount?
@Olivier probably because it's a mock up (built as a sort of joke) out of old condenser lenses, not an actual lens you could use. The focal length and aperture stats were made up.
Oct
27
comment Are there lenses f/1 or wider that work on EF or E-mount?
@icor103 Not that covers at least APS-C. There's a Voigtlander 25mm f/0.95 but that only covers micro 4/3rds. SLR magic make the widest f/0.95 for APS-C at 35mm.
Oct
27
comment Are there lenses f/1 or wider that work on EF or E-mount?
@Itai f/0.95 just sounds better, it's faster than f/1!
Oct
1
comment How to convert huge number of pictures to a short, 30 fps video? (combine frames)
I think you need to use something like ImageMagik (a command line program that can be scripted) to blend sets of 7 frames together into a single image, then you can use VirtualDub etc. to create the video.
Sep
30
comment Help!!! How can I deblur a wedding pic?
If it is badly out of focus then there is nothing you can do, I'm afraid.
Sep
25
comment What's the best way to take photos of a clear plastic bottle for product shots?
Clear plastic is a special case because of the difficulty in making it show up against a white background. Other colours are easier. Stick on opaque labels on a clear glass or plastic bottle can be difficult because you have a perfectly specular object (the bottle) and a perfectly diffuse object (the label) each of which suits a completely different lighting arrangement. It's best to light the bottle as normal (with the bright field technique) and aim a pair of lights at the label at around 45 degrees, snooted and aimed to minimise reflections from the bottle.
Sep
24
comment What's the best way to take photos of a clear plastic bottle for product shots?
A clear plastic bottle wont show up very well at all in a light tent! You want to use bright field lighting, with the only light directly behind the product (forming a pure white backdrop). The way to fight reflections is with darkness, not more light!
Sep
10
comment What are the advantages or disadvantages of a back illuminated CMOS sensor?
@erotavlas The limited gains in efficiency for large sensors still holds true - the A7RII is only something 0.3 stops more sensitive than the A7R (gains in low light performance have come from the dual conversion gain architecture, not BSI). However BSI allows for more on chip logic and faster readout to enable 4K video and silent shutter functions.
Aug
28
comment If viewers don't respond to the rule of thirds, why do some photographers still emphasize it?
The rule of thirds is definitely real - I saw somebody use it once.
Aug
24
comment Given the same sensor size lens, will a higher megapixel sensor give more “reach” then a lower one?
@HenkHolterman "perceptual megapixels" is a misleading and gross oversimplification invented by DxO labs. A budget prime from the 1970s can resolve more than enough detail to make use of a 36MP sensor.
Aug
24
comment How to test whether two RAW files have identical contents (but potentially different tags)?
@Mehrdad provided you work in a 16-bit space this ought to work - any changes you make to a 14-bit RAW file will show up in a 16-bit conversion. You can make any binary difference visible by using the levels/curves tool. The only downside to this is that some RAW converters discard edge pixels so the image you get is marginally smaller than the actual number of pixels on the sensor.
Aug
19
comment How can I stop my HDR shots looking so fake?
@Pacerier Photomatix for the first one, Photoshop for the second one. Non-pirated, of course.
Aug
17
comment What is the relationship between focal length and minimum focus distance?
The focal length of a lens doesn't change when adding an extension tube.
Aug
17
comment Do DSLRs allow use of electronic shutter for photography for stop-motion?
Actually a lot of early DSLRs with CCDs particularly Nikons did have electronic shutters.
Aug
6
comment Why is a Bayer filter with three colors(RGB) preferred over one with two colors and unfiltered (RBNeutral)?
@BrianKubera He's talking about the Fuji Super CCD SR: dpreview.com/articles/6851251325/fujisuperccdsr