www.imaging-resource.com/PRODS/nikon-z7/nikon-z7A5.HTM
“ The Nikon Z7's shutter mode defaults to fully mechanical, and this is unfortunate because like other mirrorless cameras we've tested in mechanical shutter mode (such as the Sony A7R III, Canon EOS R and various APS-C and Micro Four Thirds cameras), the Z7's mechanical first curtain shutter can cause some blurring due to "shutter shock". (Mirrorless cameras tend to suffer from shutter shock more than DSLRs, because their mechanical shutters need to close before opening again for the exposure, while DSLRs start with a closed shutter (unless in live view mode), so they only need to open them at the start of the exposure which theoretically doesn't generate as much vibrations as closing the shutter and then immediately opening it again). Most other manufacturers default to Electronic Front Curtain Shutter (EFCS) these days to avoid blurring from shutter vibrations, however the Z7's EFCS mode limits the top shutter speed to 1/2000s and the top ISO to 25,600 so the Z7 defaults to mechanical shutter so as not to limit exposure settings. „
Basta informarsi, ne soffre come del resto le altre ML. Speravo - vista la silenziosità dell'otturatore - che facesse meglio ma invece il problema persiste. Tuttavia, come molti sanno, Nikon ha cercato di mitigarlo nel miglior modo possibile con una release successiva del firmware:
“ Update 07/12/2019: On May 16, 2019 Nikon released firmware v2.00 for the Z7 (and Z6), which among other improvements adds an Auto Shutter mode! As hoped, this new feature is designed to avoid shutter shock by switching between EFCS and fully mechanical shutter automatically as needed. We've briefly tested it, and have determined at shutter speeds of 1/250s and below Auto Shutter mode uses EFCS while higher shutter speeds use the fully mechanical shutter. While we did not investigate if the switch-over shutter speed varies with the lens used or when IBIS is enabled, etc., the new feature appears to work as intended. So be sure to upgrade and use Auto Shutter mode if you want to "set and forget" to avoid shutter shock and still access the camera's full range of shutter speeds and ISO sensitivity. „
Per curiosità, voglio provare l'otturatore, completamente rivisto, della R4: ad "orecchio" sembra promettere molto bene ma come spesso accade le sensazioni ingannano.
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