Peter iNova

Peter iNova

Lives in United States LA, AK, United States
Works as a Writer. eBooks on digital photography.
Has a website at www.hdslrreview.com
Joined on Jun 4, 2000
About me:

Author/Designer of numerous digital photography eBooks.

Comments

Total: 6, showing: 1 – 6

Rubbish!

Direct link | Posted on Jan 29, 2012 at 20:40 UTC as 39th comment

Are you willing to spend 400% data space on every shot just so you "might" need to refocus a shot later?

Or would you like to have a picture with 400% of the surface area?

Oops. The Lytro does nothing to solve the "moving camera" form of smears. And those are MUCH more common.

But good IS systems do a lot to improve those.

Direct link | Posted on Jan 29, 2012 at 20:34 UTC as 6th comment | 2 replies
In reply to:

Kuppenbender: We 'have' used HDR since.....

The author, Uwe Steinmueller, speaks better English than you speak German, his native language. But still.

Direct link | Posted on Nov 24, 2011 at 22:00 UTC
On Sony unveils SLT-A77 flagship APS-C DSLR-rival article (122 comments in total)

Specifications link seems to be dysfunctional.

Direct link | Posted on Sep 3, 2011 at 18:24 UTC as 7th comment
On Lytro plenoptic camera used for fashion shoot article (100 comments in total)

These images, as do other samples I've seen, seem to have 2 or three focus zones at maximum. The most I've seen in a sample is 4 focus zones.

Direct link | Posted on Aug 3, 2011 at 22:34 UTC as 29th comment
On Just posted: Printer Primer Part 2: Print workflow article (36 comments in total)

The chestnut of specifications for highest quality printing is this:

"300 dpi". But how far can you bend that?

That's a rule of thumb carried over from dot screen printing in which 300 actual printing dots per inch is about the maximum any mechanical printing process can reliably achieve under perfect conditions.

At 12" viewing, a 4 x 6 print crosses 18° of retina. 50 line pairs per degree is approximately the human limit. Meaning at this distance, an 1800 pixel-wide image will look as sharp as can be. And it will use the full 300 ppi.

You can resample an image to any size and print out a series of the same image at different pixels per inch. Somewhere around 200 ppi, at standard 16-18 inch viewing distance for a letter page, more pixels won't add more appreciated detail.

The National Geographic's images are about 180 dpi. You'll get shots that sharp at 200 camera pixels per running inch of print. Meaning your 18 MP cam's images will look max sharp at about 25 inches big!

Direct link | Posted on Aug 3, 2011 at 22:27 UTC as 18th comment
Total: 6, showing: 1 – 6