A lot of astrophotographers are unaware that the Series III
'Stiletto' can be a true knife-edge focuser too. While our standard
180 line/inch ronchi screen is easier to use, the True Knife-Edge Accessory automatically converts the Series III 'Stiletto' to a premier knife-edge focuser in seconds.
Even better news!
To kick off the holiday season, those purchasing a Series III focuser
from now until Christmas will receive our True Knife-edge Accessory
absolutely FREE! That's a $15 savings!
Compared to other knife-edge approaches, the Series III offers
tremendous advantages in convenience and seeing. The Series III
magnifies the light pattern for easier detection of the exact focal
point, and the integral swivel diagonal lets you place yourself in a comfortable viewing position: no more kinks in the neck or grass stains on your knees and, needless to say, your focus will be perfect every time!
Series III focusers are available for Nikon, Olympus, Minolta, Canon
and other fine 35mm systems, as well as for CCD cameras manufactured
by S.B.I.G., Meade, Starlight XPress, and others. We do have one for
To learn more about true knife-edge focusing, visit our website and
take a look at our new tutorial on how it all works with the Series
III. You and your astrophotos won't regret it!
Happy Holidays and Clear Skies!