Topic: Black areas with Hasselblad 500 series (Read 3203 times)

roskav · « **on:** October 08, 2007, 02:28:08 pm »

Hi there just wondering if anyone has had similar experiences with the Hasselblad 503cw. This with a Leaf back and 80mm CF lens .. happened on about 6 shots out of 130 .. these ones were being shot in quick succession. File is a bit of a dog to show the difference in the dark areas. Any idea of what the problem might be?

Ros

roskav · « **Reply #1 on:** October 08, 2007, 02:29:39 pm »

Ah ha .. just realised ... the shutter speed was an 8th of a sec .. I must have been releasing the button too quickly.. but why only on the left?

R

mahleu · « **Reply #2 on:** October 08, 2007, 03:08:53 pm »

Quote

Ah ha .. just realised ... the shutter speed was an 8th of a sec .. I must have been releasing the button too quickly.. but why only on the left?

R
[a href=\"index.php?act=findpost&pid=144673\"][{POST_SNAPBACK}][/a]

Seems very strange as it's on the left. The auxilary curtain is an up and down mechanism. To hazard a guess, I would say one or more of the aperture blades are sticking.

roskav · « **Reply #3 on:** October 08, 2007, 05:45:01 pm »

Hmm why then the rectangular shadow? ... surely it would reflect the angles of the blades... R

Misirlou · « **Reply #4 on:** October 09, 2007, 01:11:30 pm »

Could it be part of the secondary shutter mechanism? In a 500C, there is a device inside the camera body that is independent of the shutter in the lens or the moving mirror. Not sure if a 503 has that or not.

mahleu · « **Reply #5 on:** October 10, 2007, 06:40:24 am »

Quote

Could it be part of the secondary shutter mechanism? In a 500C, there is a device inside the camera body that is independent of the shutter in the lens or the moving mirror. Not sure if a 503 has that or not.
[a href=\"index.php?act=findpost&pid=144853\"][{POST_SNAPBACK}][/a]

The secondary shutter moves up and down, not side to side.

Were you using a lens hood when you took this? If so was there a light which was able to shine directly on a portion of your lens?

roskav · « **Reply #6 on:** October 10, 2007, 07:53:06 am »

Hi there

I was using a Lee Filter Hood ... but there are just six from the set of say 25 taken from this position on a tripod .. the ones with this problem were all consecutive ... I might have moved it slightly ... but would that produce black areas? ... (There is always a bit of stray light coming from somewhere on stage) ... Could it have been electromagnetic interference from a mobile phone on the chip maybe? (Never heard of that kind of thing before though)

Ros

PS here's the sequence... first file has one example .. and second has a lot... files are lightened to show the black areas.

Ros

Author Topic: Black areas with Hasselblad 500 series (Read 3203 times)