John TF

Lives in United States United States
Joined on Sep 22, 2005


Total: 3, showing: 1 – 3
On article Gear of the Year 2018 - Allison's choice: Google Photos (164 comments in total)

Charming, funny, a pleasure to read - and good info as well. Thanks, Allison.

Link | Posted on Dec 28, 2018 at 16:47 UTC as 53rd comment
On article Hasselblad unveils pixel-shifting 200MP H5D-200c MS (218 comments in total)

How close would GigaPan + DSLR approximate these images?

Link | Posted on Aug 22, 2014 at 21:10 UTC as 45th comment | 3 replies
On article What is equivalence and why should I care? (2504 comments in total)

The series 14, 22, 35, 55, 85, 135, 200, 320 employs a constant multiplier of ~1.58 between members of the series. Rounding off to these common focal lengths accounts for slight variations from 1.58. Interesting. Also, is it a coincidence that the APS-C crop factor (1.6) is nearly the same number, or was this another aspect of equivalence which was invoked in the choice of APS-C sensor size? Because an APS-C 55 is in some ways equivalent to a FF 85, the next member in the series, and so on. I'm not sure what the benefit of that arrangement would be, though.

Link | Posted on Jul 7, 2014 at 14:47 UTC as 491st comment | 2 replies
Total: 3, showing: 1 – 3