Call me a wuz, but I really try to avoid confrontation in life when
it comes to love and business. I figure there are a thousand
branches on the road we're on and who am I to tell you to take
the one on the right to avoid disaster. I believe it's just a matter
of time before everyone finds what's really right for them. This applies to focusing for astrophotography too.
The Series IV 'Stiletto' focuser was first created for me. I had tried magnifiers, brightscreens, masks, diffraction focusing, and parfocal eyepieces until I was blue in the face. Nothing worked until my headbanging produced the basic design of the Series IV five years ago. That it became the premier way to focus a camera and is now plopped in the middle of Sky & Telescope was completely unintentional.
My first design prototype was so full of drilled holes from fooling
around that I decided to make a new one. I put the prototype up for sale on AstroMart. The fellow who bought the unit(Dan in klahoma) called two weeks later. When I answered the phone, I figured he wanted his money back! Instead, he said, "This gadget really is the cat's meow. I have a couple of buddies who want one too!". So, I made two more focusers just to raise a little money to pay for a Nagler I had my eye on. (Naturally, I told my wife nothing about any of this.)
And that's how the Series IV 'Stiletto' saga started.It was never meant to compete with anything, but as a solution for guys like me tired of wasting time taking lousy photos they were ashamed to show anyone.
Today Series IV models are available for all 35mm SLR camera brands and all CCD camera makes and models.
And unlike other things in life, I do guarantee the ‘Stiletto’ will put you in perfect focus or you’ll receive a refund. It's that simple. When it comes to performance, we really do not compete with anything.