EXCERPT page containing first few paragraphs. 2020-07-07 22:16:34
UA_SEARCH_BOT_null @ 22.214.171.124
This series shows some highly unusual behavior for out-of-focus specular highlights, using night-time conditions.
Update: while I have not personally confirmed it, my information is that a firmware update delivers circular bokeh at full aperture.
Out of focus lights
The Hasselblad XCD 90mm f/3.2 is quite unusual in one of its behaviors: wide open at f/3.2 (or f/3.5 for the XCD 45/3.5), the lens diaphragm is already stopped down (this can be seen and heard using the depth of field preview button). This behavior makes it impossible to obtain smooth rounded-out of focus blurs for specular highlights, unlike nearly all other lenses. It is a meaningful consideration for anyone used to shooting wide open for blur effects. See the blurs below from f/3.2 through f/6.3 with the unattractively asymmetric combination of spherical on one side and straight-blade lens diaphragm on the other. Even at f/9 the blurs in the extreme corners are not symmetric.
Article continues for subscribers...
Diglloyd Medium Format is by yearly subscription. Subscribe now for about 33 cents a day ($120/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!
These systems are hugely expensive, so make the right choice for your own needs (full frame vs medium format).
- In-depth lens evaluations covering behaviors not likely to be found anywhere else, based on real-world field shooting.
- How to configure menus and buttons and best operating practices, gotchas and how-to.
- Real world examples with insights found nowhere else. Make sharper images just by understanding lens and camera behaviors.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 100 megapixels filling up to 5K display, plus large crops.
- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.