Focussing aids

Permits very precise focusing. You can easily identify the optimal focus position

Permits very precise focusing. You can easily identify the optimal focus position

Permits very precise focusing. You can easily identify the optimal focus position

Howie Glatter 2" 650 nm Lasercollimator All of the collimators are powered by a CR123A lithium cell, giving about 40 hours of service, and about 4 hours in the 532nm collimator. They come with one battery, a plastic case and collimation donuts. All Laser Collimators incorporates a solid state laser diode that does not fade or change with time and use. Factory-aligned to 15 arc-seconds providing 0.1 inch accuracy at a distance of 20 feet. Shock resistant to keep its alignment - even when dropped. Includes 123A Lithium Battery, 1mm Aperture Stop, Removable Diffractive Element, Case, Collimation Rings and Instructions Delivery contains: Howie Glatter Lasercollimator 2" with 650 nm Laser Diode Battery Storage Case

Item condition: new, but not original packed

This 532nm Green collimator version is much brighter than the red ones (632nm or 650nm). In most circumstances it is overly bright for night time collimation, but it is useful for Barlowed or holographic collimation in daylight or higher levels of ambient light. Aligned to within 15 arc-seconds Scope of Delivery: Laser

Item condition: new and original packed

The Bahtinov masks from the DSLR series are specially designed for camera lenses. Thanks to a self-clamping mechanism, they fit precisely into the corresponding camera lenses of the selected diameter. This type of Bahtinov mask is simply inserted into the front of the free opening of your existing camera lens and simply removed again after focusing.