Bernard Delley

Lives in Switzerland Switzerland
Joined on Dec 4, 2010

Bernard Delley's recent activity

  • I own only Nikon DSLR cameras, but the fundamental issues for sensors are the same for all and measures to deal with it may well be similar for Canon and other manufacturers. There is usually a ...
  • I have the 14-24 f/2.8 and the AF-S 18-35mm f/3.5-4.5 G . The 18-35 G is comparable in IQ to the 14-24 in the overlapping focal range: at 2/3-1 stop  lens speed. I prefer the 18-35 G for its ...
  • For drone applications, light weight is highly desirable. The Sony RX1RII is such a FF camera (non ILC) with a 35mm f/2 lens at 507g weight. It is the top option for cameras for Wingtra survey drones ...
  • Created discussion thread pre AI and FTZ
    I could not use my non converted pre AI lenses on my DSLR D7200 D500 D800 D850 as this would damage the built in AI sensor prong. This is not a problem for me, as I would only use these old lenses: ...
  • How was your experience using a camera inside EWA Marine ? I have used my D7100 with a manual AI 20mm f3.5 lens all set in this dry bag. I could not operate an AF-S 16-85mm zoom lens in there. The ...
  • Added 1 photo to their gallery
    221023_1306_DSC_6675_s:
  • The AF-S 105mm f/1.4 E and the Sigma Art 40mm f/1.4 will be used for a long time, work great with FTZ on Z7 II. Several more F- lenses are still in use and may not be sold so quickly, as will some ...
  • Your gear list shows the AF-S 60mm f/2.8 micro and several F mount DSLR including the D850. With an ES-2 attachment you are perfectly set for fast and very high quality slide copies. An f/8 setting ...
  • Replied in Profile...
    Thanks for the hint ! Gallery images appear to stay permanently, while images inserted directly into a post may get erased after some years.
  • Created discussion thread original size in dpreview galleries
    I wanted to present full size 100% images in galleries for documentation, sometimes also full image at 50%. Now I realized that other only can see what dpreview calls Small Medium Large . Original ...
  • the fabrication tolerance requirements for high performance lenses are so tough, that the detailed performance varies from one sample to another. It is like a fingerprint, if you can measure it. ...
  • a focal length of 105mm requires way too long tubes for 1:1 reproduction. 50 is good for transparency slides, films and book reproduction.
  • just to say, I am happy with my old film and slide images made with the manual focus lenses at the time. The images are reasonably sharp, but the film IQ is not really worth more than about its 10 ...
  • You might try the lava lamp as sole source of light in the dark, and use  white balance fixed at daylight. See what you get with this. If you have the possibility, you could go on, and correct the ...
  • Your arguments are to the point. Probably 1/125s is still too slow for a person running across the field of view ( it is a basic calculation    #pixels_blur = exposure_time * speed_m/s * ...
  • Replied in False Color
    With all respect, but I do not think that this is due to an infrared issue. Especially since the Google Pixel is a small sensor camera, which probably implies a infrared cutoff already at shorter ...
  • Replied in support
    The support is a repurposed translation stage from an educational small milling machine. I use it more frequently as camera support on testing than for machining new parts.The massive weight of ...
  • I cannot imagine that a power down for lens change is necessary for safety. It is to be expected that hectic pro-photogs and and unknowing amateurs frequently forget to power down the camera. To ...
  • There are more examples for each photographer https://profoto.com/us/sharethelight/smittenandswoon I find the behind the scenes info interesting. And, as Nikon is not strongly pushing their flash ...
  • the parallel curvy edges look like they could originate from multiple exposures. Vibration reduction can do such things under certain circumstances when the camera+lens is not perfectly still. To ...
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Total messages 1959
Threads started 32
Last post 1 day ago
Total comments 6
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Last post Jul 5, 2016
Total reviews 0
Entries 36
Votes cast 2335
Last entry 4 months ago
Photos uploaded 190
Last upload 1 week ago