diglloyd publication
Imagery: Auto - Large Table of Contents
Schneider PC-TS 90/45  
Schneider PC-TS 90/45

Bokeh, 90mm

The 6-bladed diaphragm makes itself visible on out of focus areas in obvious and subtle ways.


This example is rather a worst-case, yet with many images the results are quite pleasing.

As shown below, the diaphragm shape with its six blades is readily visible in out of focus areas, along with a bright edge, drawing even more attention to the unnatural shape.

Even on the sky area, the image rendition of details and sky has unpleasant harshness to it.

Article continues for subscribers...

Already a subscriber? CLICK HERE TO LOG IN

Since 2006, Diglloyd Advanced Photography is the authoritative review and reference for DSLRs and their lenses: Canon and Nikon primarily, but also Pentax and some medium format. Reviews of key DSLRs are included, but the primary focus is on lens performance. Also included is a wealth of technique and workflow approaches.

DAP includes thousands of pages of exclusive coverage and high resolution Retina-grade examples detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare, behavioral and practical usage.

  1. Explore the table of contents
  2. View Lloyd’s Blog
  3. SUBSCRIBE NOW for $ per year.
Bokeh with Schneider PC-TS 90/4.5 @ f/11 
Bokeh with Schneider PC-TS 90/4.5 @ f/11

diglloyd Home Page | Terms of Use | PRIVACY POLICY | Contact
Copyright © 2008-2016 diglloyd Inc, all rights reserved.