This would seem to fly in the face of accepted anecdotal evidence. First off, depending on your persepective, the Contax 80mm holds up very well to 60 megapixels and also compared to the Hasselblad 80mm HC lens, but also, the same could be said in reverse for the Hasselblad 80mm HC! Contax/P65+ 80mm/2 f/11 2 Seconds Hasselblad/P65+ 80mm/2 f/11 2 Seconds First, the difference in mirror slap effect on the Hasselblad H camera vs say, a Contax or other camera, seems to be negligible.The results were very interesting. This could lead to some interesting conclusions.
All captures were with mirror down, so the full force of each respective mirror would come into play. But more interestingly, when shot at 2 seconds, there is only the slightest difference in sharpness, compared to the captures at 1/125th. The resolution from each lens was very close at 1/125th. There were 2 test sessions, with one capture session at f/11 and 1/125th of a second (the maximum flash sync speed of the Contax) and a second capture session at f/11 and 2 seconds. The lenses in each case were: Contax 80mm/2 and Hasselblad 80mm/2.8 HC. In this test, we took captures with the Hasselblad H2 Camera with a Phase One P65+ digital back in Hasselblad H mount and a Contax 645AF Camera with a Phase One P65+ in Contax mount. Is the difference as great as we’ve been led to believe? Aside from the tactile feel and sound, much of the evidence of the impact on the image is anecdotal. I was curious, and honestly, I’ve been wanting to do this test for years. The mirror makes a loud Puh-Chat! sound, you can feel the camera shake from the force of it. And for sure, the Hasselblad H Series (H1/H2/H3D/H4D/H5D, etc) has a viewfinder significantly larger and brighter than the Contax. In contrast, the Hasselblad H camera system has been thought of as the huge mirror, hard slap 645 camera body. And indeed, when you shoot with a Contax the sound and feel of the mirror does live up to that description of “buttery smooth”. The Contax 645 AF has traditionally been thought of as the minimal mirror slap king for medium format 645 bodies. That at slower shutter speeds, mirror slap can make some cameras unusable, the images soft.
Forever I have read about the impact of mirror slap on the resulting image.
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