Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2018 Mac mini up to 64GB
Sony A7R IV

NEW! Technology tour de force.

CLICK THIS AD to pre-order.
My review will be in-depth!


Sony gear wishlist...
√ B&H Photo PAYS THE SALES TAX FOR YOU More info...

Nikon 19mm f/4E ED PC-E Dual Aperture Series: Evaluating Sharpness at 12mm Shift (Mosaic, Nikon D810)

See my wish lists at B&H Photo including my Nikon wish list.

Nikon PC Nikkor 19mm f/4E ED PC-E

See reviews of tilt/shift lenses in DAP and my October overview of Nikon 19mm f/4E ED PC-E.

The Nikon 19mm f/4E ED PC-E is in effect a medium format rectilinear fisheye lens projecting a huge image circle. To maintain high image quality over a 35mm frame at 19mm is a challenge, but to do it over an area 4X or so larger is a major challenge indeed.

Accordingly, something has to give, and it seems that the “give” is in allowing a significant amount of field curvature, such that that the placement of focus becomes a key determinant for image quality when fully shifted, particularly when shifted the full 12mm along the long axis of the frame.

On a hunch based on what I saw in the first few shots, I explored focus placement on a planar subject, and I was handsomely rewarded with a finding that is essential reading for anyone using the Nikon 19mm f/4 PC-E. This evaluation presents two aperture series from f/4 through f/11, each with its own focus.

Nikon 19mm f/4E ED PC-E Dual Aperture Series at Maximal Shift: Focus Placement is Critical

Includes dual series from f/4 to f/11 at image sizes up to 28 megapixels with huge crops.

f11 @ 8.0 sec, ISO 64; 2016-12-03 18:11:40
NIKON D810 + 19.0 mm f/4.0

[low-res image for bot]

Our trusted photo rental store

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.