Katz Eye will quote on custom screens, just did for me (next day, online)...here's what they told me (I don't want the focus prism on mine):
Thank you very much for your inquiry. We can make a screen for your K20D
without focusing prisms and we could certainly add the OptiBrite treatment
and/or any of our grid/crop patterns. It would have the same precision
laser matte as our regular screens, just without the prisms. It would also
still have the larger metering circle shown in the images on the site (that
cannot be omitted). In answer to your other questions:
1. The cost would be $145 for the standard version or $200.00 for the
OptiBrite treated version, plus shipping.
2. There will be no affect on the AF system of the camera and the red focus
point indicator lights will still function. The 4 rectangular brackets that
surround the AF groups are not present on our standard screen, but are
available as an added cost ($40) option if you need them (most customers
don't, which is why we leave them off normally). As far as the metering
goes, I cannot give a 100% definitive answer, since we don't do a full
battery of metering tests with the matte-only screens. Those screens are a
very low volume special order, so it just doesn't justify that level of
testing. I can tell you that the bulk of the metering issues encountered
with our regular screens are because of the presence of the prism; so I
expect that any metering shifts that occur with the matte-only screen should
be very small and easily manageable.
The matte-only option is not available through the website, since it is a
special order. So if you decide to proceed, we'll need to handle the order
manually. If you want to use a credit card, please give me a call and we
can set the order up by phone. If you intend to use PayPal or one of our
other methods (check, money order, etc), we can take care of everything by
email. Thanks again for your interest in Katz Eye Optics products and if
you have any other questions, please feel free to ask.
Best regards,
Rachael Katz
Katz Eye Optics
Tel. +1.413.743.2523
Fax +1.888.251.5477
Katz Eye™ Optics - Custom Focusing Screens