Apochromatic doublet
Apochomatic Doublet
Is a lens with 2 types of glass processed against each other, where 1 type of glass has a low color error. Actually, an apochromat is a lens with 3 types of glass facing each other.
But due to current coating techniques, doublet lenses are also called apochromate. This is because they have the same optical values.
Manufacturers can thus deliver a good optical telescope cheaper to the customer.
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William Optics ZenithStar 61II goud APO telescoop
Aperture (mm): 61Focal length (mm): 360Speed ​​(f): 5.9Delivery time: 1 to 3 business days -
William Optics ZenithStar 61II grijs APO telescoop
Aperture (mm): 61Focal length (mm): 360Speed ​​(f): 5.9Delivery time: 1 to 3 business days -
William Optics ZenithStar 61II rood APO telescoop
Aperture (mm): 61Focal length (mm): 360Speed ​​(f): 5.9Beschikbaar via nabestelling -
William Optics Zenithstar 81 Goud APO FLAT6AIII Package
Aperture (mm): 81Focal length (mm): 558.9Speed ​​(f): 6.9Delivery time: 1 to 3 business days -
William Optics Zenithstar 81 Rood APO FLAT6AIII Package
Aperture (mm): 81Focal length (mm): 558.9Speed ​​(f): 6.9Beschikbaar via nabestelling -
ZWO FF107 Quadruplet APO
Aperture (mm): 107Focal length (mm): 749Speed ​​(f): 7Delivery time: 1 to 3 business days -
ZWO FF65 quintuplet APO
Aperture (mm): 65Focal length (mm): 416Speed ​​(f): 6.4Delivery time: 1 to 3 business days -
ZWO FF80 Quadruplet APO
Aperture (mm): 80Focal length (mm): 600Speed ​​(f): 7.5Delivery time: 1 to 3 business days -
William Optics Guide Star 61 APO telescoop
Aperture (mm): 61Focal length (mm): 360Speed ​​(f): 5.9Delivery time: depends on your choice -
William Optics ZenithStar 73 APO Goud
Aperture (mm): 73Focal length (mm): 430.7Speed ​​(f): 5.9Delivery time: 1 to 3 business days -
William Optics ZenithStar 73 APO Rood
Aperture (mm): 73Focal length (mm): 430.7Speed ​​(f): 5.9Beschikbaar via nabestelling -
TecnoSky ED APO Refractor 70/420 F/6
Aperture (mm): 70Focal length (mm): 420Speed ​​(f): 6Delivery time: ask us for the delivery time -
William Optics Star 71 APO f/4.9
Aperture (mm): 71Focal length (mm): 347.9Speed ​​(f): 4.9Beschikbaar via nabestelling