Sandeep
Member
- Joined
- Feb 11, 2006
- Messages
- 22
- Format
- Medium Format
I own these three wonderful medium format systems and was curious to see how they perform comparatively when handheld at slow shutter speeds. Can you get usable results out of them handheld ? Is mirror vibration going to be an issue with the SLRs,? Does mirror lockup make a difference? Is camera weight going to be a factor?
So I conducted a test. The three competitors were:
1) A Hasselblad 500 CM with what is probably the easiest to hold handheld tele, the Zeiss 160mm f4.8 Tessar CB lens which weighs in at only 650g. Equivalent focal length of approximately 100mm in 35mm camera terms.
2) A Mamiya RZ67 with a 180mm f4.5 W-N lens. One big and heavy combo with an equivalent focal length of approximately 90mm in 35mm camera terms.
3) A Rolleiflex 2.8F cira 1960 TLR with a Zeiss 80mm f2.8 Planar lens, equivalent to approximately a 50mm lens on a 35mm camera.
The objective of the test was not to test optical performance which has been discussed numerous times before but performance when handheld. With that goal in mind I decided to shoot each camera at very slow shutter speeds of 1/15 sec. and 1/30 sec. handheld, something I would not normally dream of doing but speeds where I felt it would be easy to notice image deterioration due to handheld vibrations coming into play rather than lens optics. Each test shot was repeated twice to account for variations and only the best at each shutter speeds were compared. The Hasselblad was also tested with and without mirror pre-release so see what effect that had. It is virtually impossible to shoot the Mamiya RZ67 handheld with the mirror locked up as it requires pressing the shutter while having a cable release screwed into the lens and using that to activate the shutter, something almost impossible to do unless the camera is on a tripod or you have an extra pair of hands. I had heard that the Rolleiflex can easily be used at slow speeds because of its light weight, small leaf shutter and no reflex mirror required to move, I was curious to see how it would fare. Test target was some newspapers taped to my front screen door and photographed with each camera handheld from around 15ft. away with targets at the center and edge of each frame. All three cameras were focused on the same point. I shot the Rolleiflex closer to account for the difference in its focal length and wanted to have it have approximately the same magnification as the other two, hence I moved in closer. Film used was Fuji 100 Superia and test results were determined using a light table with a high quality 10x aspherical magnifier. I also shot a few test shots of a mailbox at approximately 30ft. away at 1/125 sec with each camera as well as a building and street sign approximately 150ft away.
Results
The Rolleiflex had the most consistent performance with the least variation between test frames in the testing. Test images were sharp and clear and I could easily read 4mm sized type font at the center and edges of the frame. Very sharp and easily usable for prints and enlargements for excellent results. The real shocker was the Mamiya RZ67, the heaviest camera of the bunch. At least one of the two test frames at 1/15 sec and 1/30 sec were very sharp and clear. In fact the RZ test frame at 1/15 sec was even sharper than the Rolleiflex. The Hasselblad test images were consistently blurry due to vibrations at both 1/15 sec and 1/30 sec. There was no discernable difference in image quality noticeable between the mirror pre-released and not pre-released images at each shutter speed.
At 1/125 sec all three cameras produced excellent and very sharp results showing that vibrations are not a factor at this speed and the variances noticed were more likely due to differences in camera optics coming into play. In the mailbox test at 30ft, the Mamiya RZ produced the sharpest image with the Hasselblad in 2nd place with the Rolleiflex an extremely close third. In the school/street sign test at 150ft away center sharpess was virtually a dead heat between all three, with the Hasselblad showing the best edge performance, the Mamiya RZ a slightly hair behind and the Rolleiflex a clear distant third, definitely differences between optics and not handheld vibrations.
Conclusions
The small and light weight Rolleiflex can clearly handle slow shutter speeds handheld down to 1/15 sec with no problems for consistent and repeatable sharp results and its 50 year old Zeiss Planar lens is a superb performer but edge performance is not as good as the Hasselblad or Mamiya RZ.
The real surprise was the Mamiya RZ. It appears that this big and heavy camera can be used at slow shutter speeds handheld that I would normally never have dreamt that it could achieve. The camera is supposed to have a well damped mirror mechanism and perhaps this combined with its large mass help dampen camera and hand vibrations further. Although results are not consistently repeatable, it appears that if you shoot a few shots at a slow shutter speed down to 1/15 sec with the RZ you will get at least one excellent and sharp frame very usable for enlargement.
Folks had said that the Hasselblad should not be used handheld at shutter speeds below 1/125 sec and it appears they were right. This camera clearly needs to live on a tripod at slow shutter speeds but is indeed very usable handheld at 1/125 sec or faster. Its surprising, but pre-releasing the mirror seems to have no discernable effect when shooting handheld.
I hope my test and these findings are of help to others.
So I conducted a test. The three competitors were:
1) A Hasselblad 500 CM with what is probably the easiest to hold handheld tele, the Zeiss 160mm f4.8 Tessar CB lens which weighs in at only 650g. Equivalent focal length of approximately 100mm in 35mm camera terms.
2) A Mamiya RZ67 with a 180mm f4.5 W-N lens. One big and heavy combo with an equivalent focal length of approximately 90mm in 35mm camera terms.
3) A Rolleiflex 2.8F cira 1960 TLR with a Zeiss 80mm f2.8 Planar lens, equivalent to approximately a 50mm lens on a 35mm camera.
The objective of the test was not to test optical performance which has been discussed numerous times before but performance when handheld. With that goal in mind I decided to shoot each camera at very slow shutter speeds of 1/15 sec. and 1/30 sec. handheld, something I would not normally dream of doing but speeds where I felt it would be easy to notice image deterioration due to handheld vibrations coming into play rather than lens optics. Each test shot was repeated twice to account for variations and only the best at each shutter speeds were compared. The Hasselblad was also tested with and without mirror pre-release so see what effect that had. It is virtually impossible to shoot the Mamiya RZ67 handheld with the mirror locked up as it requires pressing the shutter while having a cable release screwed into the lens and using that to activate the shutter, something almost impossible to do unless the camera is on a tripod or you have an extra pair of hands. I had heard that the Rolleiflex can easily be used at slow speeds because of its light weight, small leaf shutter and no reflex mirror required to move, I was curious to see how it would fare. Test target was some newspapers taped to my front screen door and photographed with each camera handheld from around 15ft. away with targets at the center and edge of each frame. All three cameras were focused on the same point. I shot the Rolleiflex closer to account for the difference in its focal length and wanted to have it have approximately the same magnification as the other two, hence I moved in closer. Film used was Fuji 100 Superia and test results were determined using a light table with a high quality 10x aspherical magnifier. I also shot a few test shots of a mailbox at approximately 30ft. away at 1/125 sec with each camera as well as a building and street sign approximately 150ft away.
Results
The Rolleiflex had the most consistent performance with the least variation between test frames in the testing. Test images were sharp and clear and I could easily read 4mm sized type font at the center and edges of the frame. Very sharp and easily usable for prints and enlargements for excellent results. The real shocker was the Mamiya RZ67, the heaviest camera of the bunch. At least one of the two test frames at 1/15 sec and 1/30 sec were very sharp and clear. In fact the RZ test frame at 1/15 sec was even sharper than the Rolleiflex. The Hasselblad test images were consistently blurry due to vibrations at both 1/15 sec and 1/30 sec. There was no discernable difference in image quality noticeable between the mirror pre-released and not pre-released images at each shutter speed.
At 1/125 sec all three cameras produced excellent and very sharp results showing that vibrations are not a factor at this speed and the variances noticed were more likely due to differences in camera optics coming into play. In the mailbox test at 30ft, the Mamiya RZ produced the sharpest image with the Hasselblad in 2nd place with the Rolleiflex an extremely close third. In the school/street sign test at 150ft away center sharpess was virtually a dead heat between all three, with the Hasselblad showing the best edge performance, the Mamiya RZ a slightly hair behind and the Rolleiflex a clear distant third, definitely differences between optics and not handheld vibrations.
Conclusions
The small and light weight Rolleiflex can clearly handle slow shutter speeds handheld down to 1/15 sec with no problems for consistent and repeatable sharp results and its 50 year old Zeiss Planar lens is a superb performer but edge performance is not as good as the Hasselblad or Mamiya RZ.
The real surprise was the Mamiya RZ. It appears that this big and heavy camera can be used at slow shutter speeds handheld that I would normally never have dreamt that it could achieve. The camera is supposed to have a well damped mirror mechanism and perhaps this combined with its large mass help dampen camera and hand vibrations further. Although results are not consistently repeatable, it appears that if you shoot a few shots at a slow shutter speed down to 1/15 sec with the RZ you will get at least one excellent and sharp frame very usable for enlargement.
Folks had said that the Hasselblad should not be used handheld at shutter speeds below 1/125 sec and it appears they were right. This camera clearly needs to live on a tripod at slow shutter speeds but is indeed very usable handheld at 1/125 sec or faster. Its surprising, but pre-releasing the mirror seems to have no discernable effect when shooting handheld.
I hope my test and these findings are of help to others.