All apologies to the Eagles.
Getting perfect focus with a camera during the day is a great challenge. Finding perfect focus for a deep-sky object through a telescope is nothing short of miraculous! If you've been able to do this on your own biological power, I truly applaud your patience, stamina, and the rare gift God has provided you. For myself and others, however, our eyes are pretty useless for focusing in the dark. And that's why the Series IV 'Stiletto' focuser was developed.
The real problem is that our eyes were made perfectly for scanning wide areas and detecting motion and patterns, but not for focusing on
pinpoint images like stars a trillion miles away. This is why your electric focuser button is almost worn out. The image never quite looks right - and that's because your eyes automatically compensate for out-of-focus images by up to 3%. So, even when you think you have a pinpoint image to snap a picture of, you see your astrophotos later and are horrified with bloats and blurs and donuts. And the situation is not much better with CCD software where you can reiterate pictures on the screen for over an hour and still not get it right.
The Series IV 'Stiletto' focuser is designed to take your eye out of the focusing equation altogether. Using precision ronchi gratings, you are presented with a simple light pattern and not a pinpoint to squint at. The result is that you can be in perfect focus in only seconds and assured that your pictures will be blob-free.
Check out our line of Series IV astrofocusers for film and CCD cameras today on our website. With a 'Stiletto' you'll finally be able to believe your own lying eyes and your smile won't be a big disguise...