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Forum: Photographic Technique
07-11-2020, 03:54 PM
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After investigating this matter once again, I must concede that you are correct. Because I've always used full manual in the past, I confused the fact that the camera was adjusting the shutter speed to mean that for some reason the aperture was being auto adjusted in the lens, and it wasn't. I went back to B&H where I bought the M42 adapter and read the documentation where I noted that it says that the adapter does not maintain auto lens control, and only aperture priority or manual modes should be used, and I had always thought only manual. Until today I've shot only with a full open aperture. I suppose if I want to shoot with a higher aperture number on this lens and still see what I'm doing, i will need to compose, focus, then adjust the aperture as the last step. Let the fun continue, and thanks for clarifying this issue.
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Forum: Photographic Technique
07-11-2020, 09:41 AM
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Boriscleto, You're quite correct and I already understand all that you've said. Everything i had read about using the pentax K mount to M42 mount adapter led me to believe that I would need to set the aperture manually, but that was not my experience today. There is an A/M switch on the lens. With the lens switch at M, the aperture of course stops down when i turn the aperture ring. When the lens switch is set to A, I can turn the aperture ring (in my test shots i went to f11) and the viewfinder remains fully bright, then the aperture stops down when i press the shutter. That's what I didn't expect to happen and why i was surprised.
Following this reply, and after some further review on my part, I did conclude that Boriscleto was right and my assumptions about what had happened when shooting with that lens were not correct. See my final post on this topic.
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Forum: Photographic Technique
07-11-2020, 08:32 AM
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This may be common knowledge but it was a new discovery for me. Some years ago I managed to acquire a M42 mount Vivitar Series 1 135mm f:2.3. I had played with it a few times and had always assumed that an M42 mount on my K-5 would only work if I set the exposure myself in manual mode. I took it out into the garden this morning to shoot some flowers, got set up and started shooting and was getting some good shots. I was quite surprised when i realized I'd left the camera in Aperture priority, and while the camera didn't know what the aperture setting was, it was adjusting the shutter speed to come up with a properly exposed image. When you stop down the aperture on a manual lens with the camera in manual mode the image in the viewfinder gets progressively darker, and i noticed this wasn't happening in aperture priority.
This lens in now a little more fun to use.
Note: see my final post on this topic. it seems my conclusions were not correct.
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Forum: Pentax Camera and Field Accessories
07-11-2020, 08:05 AM
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Came across this Pentax camera bag a while back. Not sure how old it is, there's no info on it other than the name on the front. It had an SF10 and pentax f 28-80 lens inside and I recall it cost me $50.
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Forum: Pentax Camera and Field Accessories
06-07-2012, 06:49 PM
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I don't know about the ball head on the 0691 or 1691, but I have a Benro Travel Angel 2691 and it came with their B-1 Ballhead. I don't have the carbon fibre tripod, but I still find it ok to carry around. I mount a K-5 with a variety of lenses, some fairly heavy, and I find the B-1 ball head to be quite secure.
my local dealer's site lists the load capacity of the 0691as 6kg, the 1691 as 8kg and the 2691 as 12kg. I don't know the exact weight of my camera and lens when I mount them, so I think I was just playing it safe. I'd love to have the light weight of a carbon fibre but I'm quite pleased with what I have.
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Forum: General Talk
05-04-2011, 05:51 AM
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I've just submitted my order for two. Thanks.
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Forum: Welcomes and Introductions
02-22-2009, 07:15 AM
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Just a quick note to say hello, and thanks for the wealth of information I keep finding here. The Forum has helped with greatly with some recent buying decisions.
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