STARTEST IMAGES GALLERY

 Refractor 100_5

Type: Refractor SD or ED Triplet
Aperture: 100 mm
Focal length:1200 mm(F12)

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Markus Ludes (c) 2001

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Inside Focus

Inside Focus

Outside Focus

Outside Focus

In white light this lens shows very good smoothness and around 1/8 wavefront p.t.v.. Using a green filter, the lens show even smoother and could be estimated at 1/10 wavefront p.t.v. or even better, to good to give an real estimation. I think the strehl is in any case in the 99% area or better.

Markus Ludes (APM-Telescopes)

Note: ronchi-testing with 254 lines/inch or 100 lines/cm.

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