Apples

Apples

by Garik

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1,775 reputation
614
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location Norway
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visits member for 2 years
seen 20 mins ago
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Hobbyist photographer with a Nikon D5100.

I started doing photography in the late '70s (I was 10, and got a Minolta SR-1 from my father when he bought a Nikon F), but shelved the hobby in the late '80s. Picked it up again last year, this time with digital equipment.

Philosophically, I think photography is not much about representing reality. Although there is a subbranch of photography that does specialize in representing reality faithfully, those photos tend to be fairly dull (think passport photos or surveillance cameras).

To quote The Luminous Landscape:

The problem with reality is that it is often far too real.

When photos are for entertainment, art or decoration (as opposed to documentation), we don't want reality. We want drama, interesting colors, attention-grabbing tableaus. Or black-and-white subjects hunched over against the storm while trundling across an endless bleak plain, but in any case something that differs from day-to-day reality in some interesting way.

So I consider photography to be just as much about photoshopping as it is about wielding a camera. Whether you get a particular effect in camera or through software doesn't matter much. That's just a technicality, and the choice between in-camera and in-post boils down to what's the simplest way to achieve any given effect.


Jan
10
comment How can a high resolution camera matter when the output is low resolution?
@MichaelNielsen Agree that larger sensors have higher system resolution. Going by the DxOMark numbers, a low-end lens on a 16Mpx APS-C sensor gives no more than 4Mpx worth of detail. But 4Mpx of detail is still ~3x oversampling at web size, so I wouldn't expect much difference to an MF which might achieve ~6x. Maybe DxOMark overstates their "perceptual Mpx" number, I think it's based on MTF 20. So it's conceivable that a web size MF photo has MTF ~100, while the web size APS-C photo has less.
Jan
10
comment How can a high resolution camera matter when the output is low resolution?
Thanks, makes sense. On faking DoF, I think the 3D models used in computer graphics are advanced enough that it's mostly a matter of time. Maybe a future plugin for Lightroom/Photoshop 10? :)
Jan
10
comment How can a high resolution camera matter when the output is low resolution?
@MichaelNielsen But thanks for your examples. There are some differences left that I can't explain, but I don't think it falls under the header of "resolution". I could be wrong, of course :) - I'll need to do some experiments of my own.
Jan
10
comment How can a high resolution camera matter when the output is low resolution?
Thanks for the latest example, it makes it seem credible that something like the pictures linked in the question could be created with an APS-C sensor. @MichaelNielsen But that's the kind of oversampling the question is about, e.g. downscaling say a 16Mpx APS-C shot to <1Mpx web size. So in terms of oversampling, can e.g. 7x (49 pixels input to 1 px output) oversampling be visibly better than 5x oversampling? I'm leaning towards "probably not", in your example with the lines I can't see much/any difference beyond 4x oversampling.
Jan
9
comment How can a high resolution camera matter when the output is low resolution?
Thanks, interesting comparisons. It does look like sharpness/detail (or at least an illusion of detail) survives more downscaling than I thought. You've given me something to consider.
Jan
9
awarded  Student
Jan
9
asked How can a high resolution camera matter when the output is low resolution?
Jan
7
comment How does focus work on mobile phone cameras?
@cnst Inadequate compared to what? The cameras in the iPhone 5 cost $18 (for both), I expect other top-of-the-line smartphones are similar. Even in an age of mass production there are limits to how much engineering $18 will buy :)
Jan
3
comment Are there reasons for using in-camera processing settings rather than adjusting in post?
@RichM The camera does the processing before it writes the JPG, but so does Lightroom (if you shoot in RAW). I take your question to mean "can the camera convert raw data to JPG better than a computer can?". Theoretically, converting from raw to JPG can always be done the same or better in post, because post has orders of magnitude more time and processing power, and you can tweak each image individually. Even long exposure noise reduction, where the camera collects additional data that generally won't be available in post, could be replicated in post by shooting the "dark frame" manually.
Jan
2
comment Why are some original files unavailable for export from Aperture?
I haven't used Aperture, but assuming it's similar to iPhoto: There are original files and there are previews - the pictures you see in Aperture are presumably the low-resolution previews (stored on your main hard drive), while the actual originals (used for exports) are unavailable. There should be a setting somewhere: "import originals to library" vs "leave originals where they are". You may get better answers at the Apple stackexchange site.
Jan
1
answered What is the little metal piece attached to the aperture ring in some Zeiss lenses?
Jan
1
comment What are the difficulties with making a 10mm-300mm zoom lens?
See also Is it possible to build a 17-300mm f/1.4?, Where's my 30x zoom SLR lens? and what a 6mm prime for full frame looks like
Dec
31
comment Which is more efficient when shooting weddings: interpolating sRAW or shooting in jpeg?
+1, a good way to put it. Storage and computing power enough to deal with RAW is simply the cost of doing business - why would you invest in a high-end camera just to throw away 50-75% of the sensor data even before you reach a monitor large enough to tell the good shots from the bad ones? Aggressive culling is a better approach, I think.
Dec
30
comment Which is more efficient when shooting weddings: interpolating sRAW or shooting in jpeg?
@Rish How about shooting in RAW and using JPG as the archival format, after the bride and groom have made their pick?
Dec
28
answered What's the best lens for shooting baby and kids with a DX Nikon?
Dec
22
comment Preview photos on iPad which is connected to DSLR with Apple Camera Connection Kit
Have a look at ShutterSnitch - it supports wi-fi/eye-fi and FTP, at least. Capture Pilot lets you preview on an iPad, but you'll need a laptop and the Capture One Pro software as well - the camera apparently connects to the laptop, and the iPad acts as a screen. Photosmith needs Lightroom. It can use the Apple Connection Kit, but it's not clear if it can do it in real time.
Dec
22
comment How do i get back to shooting mode in D5100?
There's also the Nikon Digitutor for those that hate reading manuals :) I do own a D5100, and can confirm: Press the 'i' button to toggle the info display on and off, press the 'Lv' lever towards you to toggle Live view. Just note that the viewfinder autofocus works better than the live view autofocus in low light, so you may want to switch to the viewfinder (turning off the live view) if you have trouble focusing.
Dec
20
awarded  Citizen Patrol
Dec
20
awarded  Critic
Dec
18
comment How sharp of an image should I expect at night?
@erotsppa Increase the exposure time. One stop smaller aperture (f/5.6 to f/8) means you need to double the exposure time (from 20s to 40s, you'll need the bulb mode to get past 30s) or double the ISO.