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07-27-2010, 08:25 AM   #181
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QuoteOriginally posted by bbluesman Quote


This image was a vivid reminder of the days of Kodak Pan, Plus and Tri-X film and trying to deal with the positive and negative aspects of the then new-to-me TTL metering with a Spotmatic.

More often than not, I had better results in this sort of high contrast situation by metering off of a typical subject (a hand?) and pre-setting the exposure than I did with dynamic TTL metering. I believe this was because the center-averaging exposure was constantly re-calculating the scene rather than than the desired subject.

Although I thought TTL metering for close-ups and extension tubes/bellows work was magic, it was my habit to use predictive, manual metering for this sort of scene and it remains my habit even today with DSLR's. I see no reason to allow TTL metering to mess up a perfectly good exposure calculation and the histogram and instant review take all the guess work out of the prediction.

With post-processing able to salvage both highlights and shadows now it's even better IMO.

H2

07-27-2010, 09:31 AM   #182
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just got 2 quick questions about using m42 on pentax DSLR's

1- does the aperture only close down just before the shot is taken?
2- how does metering work, does it work just the same as when using k mount glass? (i.e. AE-L/green button)
07-27-2010, 10:57 AM   #183
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1 - no, there is no aperture linkage for M42's on a K mount. Instead, you put your lens on the 'M' mode - turning the aperture ring directly stops down the aperture - and...

2 - you may use Av mode (usually with exposure compensation) to let the camera set the shutter speed at your chosen (manually stopped down) aperture, or you may use the green button to do a manual reading.
07-28-2010, 09:51 AM   #184
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QuoteOriginally posted by Nesster Quote
Thanks, Georg - I've never used an Enna, they look like good lenses. Is that a statue or a person?
That's a statue. The (M42) Enna lenses are quite good from the full-metal era (similar to Schneider and Stäble).
They changed to all-plastic in the 70s. Still good, but tend to fog up inside from some of that plastic.


M42 czj mc flektogon 35/2.4 @2.4 on K100D

08-21-2010, 04:13 AM   #185
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Let's revive this thread a bit. Here are a couple from my Fujinon (non EBC version) 50/f1.4. Taken wide open





Does anyone know the difference between EBC and non-EBC? Mine doesn't have the A/M switch so I can only use it wide open until it gets modified.
08-21-2010, 05:03 PM   #186
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Pentax K-7 + Helios 44-6
08-22-2010, 08:24 AM   #187
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Great portrait Alexander, well done! The Helios seems to work fine with any camera. Is there any pp on this photo?

Here's an unprocessed and uncropped photo. However, since transferring it through Picasa (incl. resize) there is some sharpening involved for sure.

M42 Mamiya Sekor SX 2.8 28mm + cheap polarizer on K100D, f/11, 1/80s. ISO200
08-22-2010, 08:41 AM   #188
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Good shot ! The guitarist's energy is in high contrast with some people sitting on the left. I really love the amp on the trunk, but the tree probably doesn't !

08-22-2010, 08:48 AM   #189
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Thanks for the comment. The tree was shaking its leaves in extasy .-)
08-22-2010, 08:50 AM   #190
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Caught this one yesterday with Helios-44-M-4
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PENTAX K100D  Photo 
08-22-2010, 01:26 PM   #191
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http://img413.imageshack.us/img413/466/1pnt9584.jpg
08-22-2010, 01:29 PM   #192
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QuoteOriginally posted by georgweb Quote
. . .
M42 Mamiya Sekor SX 2.8 28mm + cheap polarizer on K100D, f/11, 1/80s. ISO200
What is your chosen method to deal with the auto aperture pin?
08-22-2010, 01:39 PM   #193
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QuoteOriginally posted by Nesster Quote
Thanks, Georg - I've never used an Enna, they look like good lenses. Is that a statue or a person?

Komura 135mm f/2.3, K100D
Very impressive!
I never would have thought given my own experiences with other Koumra lenses.
08-22-2010, 04:59 PM - 1 Like   #194
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QuoteOriginally posted by AlexanderMayorov Quote
Alexander, I reckon you have posted the original pic without postprocess? If so, that is really impressive.

QuoteOriginally posted by Blue Quote
What is your chosen method to deal with the auto aperture pin?
My chosen method is the cotton shaft method very well pictured by user Mel here, https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/77158-caution-...tml#post862052. Sometimes though it is not
so easy to free the pin from the mechanism, as with the 28. Here, I have slitted the shaft lenghtwise (a parallel cut is much better than diagonal) and popped it
onto the pin inside. Good enough for me, but you could alternatively wrap some wire around the pin and twist and cut. I hope that's what you have been asking for.


M42 Mamiya Sekor SX 2.8 28mm + cheap polarizer on K100D, f/11, 1/125s. no crop no pp ISO200
08-22-2010, 07:26 PM   #195
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QuoteOriginally posted by georgweb Quote
. . .

My chosen method is the cotton shaft method very well pictured by user Mel here, https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/77158-caution-...tml#post862052. Sometimes though it is not
so easy to free the pin from the mechanism, as with the 28. Here, I have slitted the shaft lenghtwise (a parallel cut is much better than diagonal) and popped it
onto the pin inside. Good enough for me, but you could alternatively wrap some wire around the pin and twist and cut. I hope that's what you have been asking for.


M42 Mamiya Sekor SX 2.8 28mm + cheap polarizer on K100D, f/11, 1/125s. no crop no pp ISO200
That's what I was looking for. bigthumbsup I don't want to Super Glue it and I haven't decided if I want to spend $42 on the special m42 adapter for it.

Edit: That is one interesting boat!
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