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Forum: Pentax Medium Format
10-06-2010, 09:31 AM
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Thanks for clearing that up, Tuco.
It just goes to show you can't believe everything you read on the Web!
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Forum: Pentax Medium Format
10-01-2010, 12:26 PM
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Of course, if you are short sighted then the existing diopter lens may suit you, anyway, so give it a try before you buy a new one.
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Forum: Pentax Medium Format
10-01-2010, 12:21 PM
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jbander,
if your 6x7 has the prism finder then there is no built-in diopter adjustment. But there is on the "chimney" finder if you can get one - this finder also has the advantage of letting you see 100% of the focussing screen as opposed to 90%, with the prism.
For all models (except the 67ll) changing the focussing screen can only be done by a Service Centre. The standard screen is, usually, micro-prism rather than split-screen focussing.
There is a simple answer to your eyesight problem. Unscrew the diopter lens, from the back of the prism, and remove it from it's holder. Then take it to your Optician and ask him to cut a lens to the same shape and size, using your prescription.
This is an easy job for the modern 1-hour spectacle shops who cut lenses to all sorts of shapes to fit frames, these days.
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Forum: Pentax Medium Format
10-01-2010, 11:39 AM
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Great idea, Tuco!
Add the lens that started this all to the list:
The SMC Pentax 67 120mm Soft accepts screw filters only.
Steve.
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Forum: Pentax Medium Format
09-29-2010, 02:08 AM
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Thanks, guys, that's very helpful.
I intend to buy a 55mm, when a nice one comes along, so I'll hold on to the filters for now.
It's interesting that a camera system manufacturer, as renowned as Pentax, should not have continuity across it's lens range with regard to filter fitting, if not size.
I wonder if some of the lens barrels were supplied by a sub-contractor and someone just forgot to put the combination filter mount in the specs?
Anyway, another thing to watch out for when buying unseen!
I'm very much enjoying using my 67, by the way. Makes me regret not buying one years ago.
Good day, Everyone.
Steve.
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Forum: Pentax Medium Format
09-28-2010, 02:08 PM
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Hi, Everyone!
I've just started putting together a 67 outfit and scored some genuine Pentax 77mm filters, on the auction site, which I intended to use on my 120mm Soft lens.
But it turns out that the filters are bayonet mount and my lens only accepts a screw thread...
Does anyone know which lenses (generation of lenses?) will accept these bayonet mount filters or is it better to forget about them and go buy some Hoya screw threads, instead?
Steve.
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