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200 Short Johnson Road |
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Products:
Eyepieces From .965" / 1.25" / 2.0" / 2.7" / 3.0" / 4.0" / 4.3"
BT70 RA88 / Miyauchi / Kowa eyepieces Advanced Barlow Lenses including: Modular and 4 element Telecentric magnification multipliers
1.25" and 2" Advanced Binoviewers From $649-$1999
Binoviewer OCA's and Accessories
Adapters - Meade Scopes and ETX
Large and Small Non Illuminated and Illuminated Cross haired eyepieces.
Large and Small Binocular Cleaning and Alignment services $99 Call or Email for details.
Special binoviewer services and products you cant get anywhere else ICP's Image Correction Prisms for Newts
Observers Hood - light blocking
Ladies Corner Astronomy Themed Fleece Blanket
Non-Astronomy Items
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Once you get into the Diagonal calculator, use the below provided specs for the values. The scope set at f4.5 and the binoviewers for CA. and OP. You must double the off axis value to get your diameter spot of full illumination at the eyepieces. The ink is under the specs. Play with the f-ratios and see what happens.
Baader specs below Primary mirror diameter: 200 mm ---scope primary size Primary mirror focal length: 900 mm ---scopes focal length Diagonal size - m.a.: 28mm ---binoviewer bottom Clear aperture Diagonal to focal plane: 114mm ---distance from bottom of binoviewer to eyepiece focal plane. You have 1 mm of Full illumination without an OCA.
New Black Night specs below Primary mirror diameter: 200 mm ---scope primary size Primary mirror focal length: 900 mm ---scopes focal length Diagonal size - m.a.: 25mm ---binoviewer bottom Clear aperture Diagonal to focal plane: 100mm ---distance from bottom of binoviewer to eyepiece focal plane. You have 1 mm of Full illumination without an OCA. Mel Bartel Diagonal Calculator Try All these Dielectric binoviewers below. Baader BN25 TV Denk CA 28 x OP 114mm CA 25 x OP 100mm CA 28 x OP 130mm CA 26 x OP 116mm $1600 $450 $900 $900
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