steveo_mcg
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Cheers mate.
I seem to now have a Leica CL with a 40mm Rokkor-M...



(I'm using a strap that I think originally came with my Trip 35, but I'm planning to get a new one. I think the flat anodised lugs designed for the neck strap, which is supposed to be a full loop going through both lugs, don't really work well with most wrist straps, it feels like they will get badly marked. I may need to find one where the cord itself goes through the lug, rather than a split ring.)
Chris, did you see the link I posted a while back about straps. This company have all sorts. I have two.
http://stores.ebay.co.uk/cordweaver?_trksid=p2047675.l2563
Even if its the ordinary 50mm f2.8 its still a bit of a bargain.Just spotted a Voigtlander Bessamatic with 15 minutes to go on evilbay. Non-working shutter but otherwise in very good condition, so I popped on a cheeky bid of £6.50 and won it. Good news is that it looks like it might have the Septon 50mm f2 lens attached....Even if its the ordinary 50mm f2.8 its still a bit of a bargain.
Andy
Just spotted a Voigtlander Bessamatic with 15 minutes to go on evilbay. Non-working shutter but otherwise in very good condition, so I popped on a cheeky bid of £6.50 and won it. Good news is that it looks like it might have the Septon 50mm f2 lens attached....Even if its the ordinary 50mm f2.8 its still a bit of a bargain.
Andy




I take it that Mr Whitehead can repair these machines.

Pics... On its own (more or less):
It is much smaller than my Pentax MX with a 35mm lens:
The Rokkor-M 40mm f/2 lens is MUCH smaller than the Pentax-M 35mm f/2, for reasons that completely escape me!
(I'm using a strap that I think originally came with my Trip 35, but I'm planning to get a new one. I think the flat anodised lugs designed for the neck strap, which is supposed to be a full loop going through both lugs, don't really work well with most wrist straps, it feels like they will get badly marked. I may need to find one where the cord itself goes through the lug, rather than a split ring.)
The pentax 35 mm lens is a retrofocus lens to achieve the necessary back focus from the flange.
the 40 mm minolta is a standard construction as it has sufficient back focus for infinity.
This has always been a problem with slr cameras.
Such explanations in simple terms ( well as simple as they can be made i guess) is one of many things that makes this forum so good.May I jump in? A lens has two nodal planes. When the subject is at infinity, the focused image lies one focal length behind the rear nodal plane (by definition). If the lens physically can't get close enough to the the film/sensor because there's a flipping great mirror in the way, the optical designer has to resort to making the rear nodal plane lie outside and behind the lens. Such a design is called retrofocus. These extra optical shenanigans are the reason that many regard extreme wide angle lenses for non SLR cameras as optically better performers - one less hard problem to be solved.
The reverse happens when a designer wants to make a lens physically shorter than its focal length (if a 1000mm lens has to have a rear nodal plane 1 meter from the film plane, it's going to be a long lens). In this case, the rear nodal plane can be in front of the physical lens - a telephoto design.
May I jump in? A lens has two nodal planes. When the subject is at infinity, the focused image lies one focal length behind the rear nodal plane (by definition). If the lens physically can't get close enough to the the film/sensor because there's a flipping great mirror in the way, the optical designer has to resort to making the rear nodal plane lie outside and behind the lens. Such a design is called retrofocus. These extra optical shenanigans are the reason that many regard extreme wide angle lenses for non SLR cameras as optically better performers - one less hard problem to be solved.
The reverse happens when a designer wants to make a lens physically shorter than its focal length (if a 1000mm lens has to have a rear nodal plane 1 meter from the film plane, it's going to be a long lens). In this case, the rear nodal plane can be in front of the physical lens - a telephoto design.
Gotta love those s*** listings, misspellings, one very poor photograph.Just spotted a Voigtlander Bessamatic with 15 minutes to go on evilbay. Non-working shutter but otherwise in very good condition, so I popped on a cheeky bid of £6.50 and won it. Good news is that it looks like it might have the Septon 50mm f2 lens attached....Even if its the ordinary 50mm f2.8 its still a bit of a bargain.
Andy
May I jump in? A lens has two nodal planes. When the subject is at infinity, the focused image lies one focal length behind the rear nodal plane (by definition). If the lens physically can't get close enough to the the film/sensor because there's a flipping great mirror in the way, the optical designer has to resort to making the rear nodal plane lie outside and behind the lens. Such a design is called retrofocus. These extra optical shenanigans are the reason that many regard extreme wide angle lenses for non SLR cameras as optically better performers - one less hard problem to be solved.
The reverse happens when a designer wants to make a lens physically shorter than its focal length (if a 1000mm lens has to have a rear nodal plane 1 meter from the film plane, it's going to be a long lens). In this case, the rear nodal plane can be in front of the physical lens - a telephoto design.
Ah, one picture is worth a thousand words - which is why photographs need to have titles to explain them![]()

Vito C by andysnapper1, on FlickrSounds like a plan. I can't do the next three weekends though, but after that we can sort something out.![]()