The new Series IV 'Stiletto' focuser is made to use with your
specific 35mm camera!
If you're still not getting those pinpoint star images on film,
you should know by now that Vari-mags, Brightscreens, and smokestack
magnifiers really don't do the trick. The problem is not with these
devices, but rather with your own eye which continually and
automatically compensates for out of focus images. This can be
compensated for in normal viewing - (ever notice how many times you hit the electric focuser when viewing a planet?)- but catastrophic for focusing a camera which has an unforgiving film-plane distance.
The Series IV 'Stiletto' focuser takes your eyeball out of the
focusing equation altogether using easy knife-edge focusing
techniques. The precision ronchi gratings used guarantee it each and every time. And every Series IV is specifically calibrated to the exact film-plane distance of your particular camera. It cannot fail since we have your number!
Plus, since the Series IV is a completely modular design, it gives
you the flexibility to use it with any 35mm, CCD, or medium format camera. Series IV modular mounts are available that match all fine 35mm, CCD, and MF cameras. As your astrophotography hobby evolves, the Series IV will evolve with you and can be used with your future equipment. Talk about non-obsolescence!
Check out the Series IV tech details on our website today or just give me a call at 1-800-232-9416.