Beattie Intenscreen in Pentax 67?

[olwick]

Hi,

I'm considering putting a Beattie Intenscreen into my Pentax 67 to help with low light focus accuracy.

Do I need to mave the meter recalibrated if I do? (I have the AE finder)

And does it require professional installation?

Thanks,

Mark

 

[benjiboy]

Look here http://www.display-optics.com/products_medium-format_pentax.htm it says exposure compensation may be required with the AE prism, and in the technical information it says the screen needs to be changed by a Pentax authorized service agent.

 

[borisdeswan]

Installation by pro is required. Callibration with the metered prism is not. Mine work with a precision that allows me to trust the readings even shooting slide film.But it is a good idea to send the whole thing in for service while you're at it.