First, if you don't know that 'MF' stands for Medium Format, you
should probably be reading about the Series IV 'Stiletto' 35mm
and CCD focusers instead. But, if you do know what the capital
MF means, then you also know all about the capital PROBLEM it is to
focus on stars with these beasts! Most astrophotos come out looking
like a product of Hubble 1. But don't blame your optics. They're
fine, and likely a lot better than anyone else's around.
The fact is, since the film area is so large in MFs, the film in the
camera does not necessarily lie perfectly flat across the entire film plane. Combine this with fast refractors with non-optimal lens
correctors and your photo session quickly turns into a bloated image
The good news is that if you own a PENTAX 67 or 645, MAMIYA 645,
HASSELBLAD, or KIEV medium format, you can reach pinpoint focus in
seconds. The Series IV 'Stiletto' is a high precison dedicated
astrofocuser. The Series IV attaches to your scope the same way your
camera does now since the Series IV employs a bayonet mount exactly
like that on your camera. And, if you haven't found a decent way to
attach your camera, we have a Multi-Adapter for it that will do the
trick. While the Series IV MF models come pre-calibrated to the
factory spec film-plane distance for your camera, the adjustable
'Stiletto' helical focusing mechanism allows you to tweak focusing
for optimal results - all this without altering your camera at all!
But the best news of all is that the Series IV is totally flexible and modular. With a simple change of its modular mount, it can be used with just about any 35mm or CCD astrocamera as well - with no recalibration in between. Our easy swap-in, swap-out procedure puts you in focus in seconds. It's guaranteed.
Visit our website today to read all the details about our MF
focusers. And remember, you really want to tame your beast, not kill it...