mikael_forslund

Please see my posting "Info on Kenco Precision Loupe 3x for 6x7" under Pentax 67. This loupe has an effective view field of 89 mm according to B&H. This is the loupe with the largest area viewed I have found so far. I have not decided to buy it myself yet but it seems to be a good candidate. B&H also have other loupes for ground glass viewing and large format.

Please tell me/us if You find any other interesting loupe!

Good Luck!/Mikael

I am still looking for a good loupe to use for (Pentax) 6x7 slides and negs! I found a

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"monster size" Kenco loupe at B&H, the Kenco Precision Loupe 3x for 6x7 (PR3X) see

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(http://www.bhphotovideo.com/photo/loupes/214.html#Kenko Precision Loupe).

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Has anyone used this loupe? PLEASE provide some first hand comments!

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How does it compare to the PEAK 4x in image quality and other aspects?

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Thank You all! /Mikael

I am a newbie to MF and very pleased with my first 6x7 slides, but I have a problem

with viewing and evaluating the slides. How do You other 6x7 users go about it? Do

You use loupes and a light box or projectors or something else?

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LOUPE

- VIEW AREA: Can anyone recommend a loupe of good quality that permits viewing

the entire area of an 6x7 slide or, if those do not exist, at least avoids 2standing2 on the

film stripe.

- QUALITY: How important is the loupe quality? Of course the viewing pleasure

increases with better optics / higher price but what quality do You really need for correct

selection of the best slide to make an Ilfochrome copy from?

- MAGNIFICATION: What is the best magnification for 6x74s?

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LIGHT BOX

I use clear acetate filing sheets with room for 4 stripes of three 6x74s. The sheet size is

260 x 310 mm (Hama no 2289). It would be nice to view an entire roll at once but:

- SIZE: What is the most practical size of a light box? Is larger always better or does the

light from the unused area of the light box strain You eyes? What is the minimum usable

size?

- COLOR TEMPERATURE: How important is the color temperature for correct selection

of the best slide to make an Ilfochrome copy from? What is the color temperature of an

enlarger?

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PROJECTOR

- AS SELECTION TOOL: Does anyone use a projector for 6x7 slides and mount them in

8.5 x 8.5 cm frames for selection purposes, besides the obvious viewing pleasure?

- ENLARGER INSERT FOR 8.5x8.5 MOUNT: If You would mount the slides in 8.5 x

8.5 cm frames, do anyone know if there is an enlarger with inserts for mounted 8.5 x 8.5

cm frames or do You have to demount them to make an Ilfochrome ? Perhaps the flatness

is better with an insert for unmounted slides anyway ?

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OTHER:

Do anyone have another good way to view and evaluate 6x74s?

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To avoid duplicating information please see and refer to and Jack Ngans question (Uncategorized: Which loupe is good for Medium Format Camera/Slide/Negative?) before answering. Perhaps just add view area information.

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OOPS! This ended up to be a lot of questions but it IS an interesting subject and the

ignorance of a newbie is LARGE. Please bear with me and answer the questions of Your

interest. To simplify for me and other interested readers perhaps You can use my

indexing above to relate the answer to the question, for example:

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LOUPE- QUALITY: I think that . . .

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Thank You All!

Mikael

The crank:

The local Pentax representative told me that the film advance/shutter cocking crank

mechanism has been known to break down if You use to much force when advancing

or advance very fast.

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Mirror problem in Rich Lermans answer:

A simple reason for the mirror to stop partway up is that the P67 is designed to do this if

the battery is going flat. I presume that this was not the case for Rich but I suppose that a

contact problem giving resulting in too low battery voltage would make the P67 behave in

the same way even if the battery is new.

I am a beginner in MF and the Pentax67. I presumed that the exposed film frames should

be rectangular with straight corners. After my first two rolls I see that the film is also

exposed in a very small triangularly shaped area (perhaps 0.5 mm high and 1 mm long)

above and below the straight corners of the film frames. It looks like the light during

exposure reaches part of the film that rests on the two metal rolls that guides the film

over the shutter. Hope that You can follow this!

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My questions:

Do anyone else see this behavior?

Is this "normal" for the P67?

Is it a film loading error

or does the P67 need an adjustment?