Mirror lenses (2)

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   The sensor read-out speed of the A7Rv electronic shutter is 1/15th of a second. So considerably longer than the 1/500th of a second shutter time. Since it takes 1/15th of a second to read from the first to the last lines of the sensor a slight swaying of the camera results in this "swinging" building, which is obviously enhanced by the long focal length. 

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pegelli Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Dyxum Administrator Joined: 02 June 2007 Country: Belgium Location: Schilde Status: Offline Posts: 39051	Post Options Post Reply Quote pegelli Report Post Quote Reply Posted: 22 May 2025 at 19:03
	The sensor read-out speed of the A7Rv electronic shutter is 1/15th of a second. So considerably longer than the 1/500th of a second shutter time. Since it takes 1/15th of a second to read from the first to the last lines of the sensor a slight swaying of the camera results in this "swinging" building, which is obviously enhanced by the long focal length.
	You can see the April Foolishness 2023 exhibition here Another great show of the talent we have on Dyxum



Jadom Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 01 September 2014 Country: United States Location: Poland, USA Status: Offline Posts: 2615	Post Options Post Reply Quote Jadom Report Post Quote Reply Posted: 03 July 2025 at 20:39
	First two (I would say) taken with my new RF Rokkor-X 500mm, f:8: 1. _DSC1586R A7R4 at 500mm, f8, s1/250, iso100 2. _DSC1587R A7R4 at 500mm, f8, s1/40, iso100
	Jack.SigmaDP1x,DP2M,SonyA7M2,Min: MC35F2.8, AF50F1.7, 70-210F, SL16-35F4, KironKine 80-200F4Macro, Promaster MC28F2.8, Rokinon 85f1.4, Samyang 14F2.8, Tamron: SP AF 28-75F2.8XR Di LD, 70-300 F4-5.6Di