A flattener "smoothes" the optical problems in the image circle caused by coma and astigmatism, leading to a similar perfect image quality as on the optical axis itself.
The flattener Model 2 is particularly designed for shorter focal lengths, and faster focal ratios. It currently represents the limit of what is possible.
There is no comparable flattener with such a good apochromatic longitudinal and lateral aberration correction on the market. Other cheaper models fall short significantly , which is already obvious by their significantly higher vignetting but mainly by the drastically higher inferior lateral chromatic aberration.
The new flattener allows a generous working
Model 1 is suitable for the following Telescopes and telescopes with similar f-ratio:
- APM LZOS Apo 105 F/6,2
- APM Apo 107 F/6,5
- APM LZOS Apo 115 F/7
- APM LZOS Apo 123 F/6
- APM LZOS Apo 130 F/6
- APM-Riccardi Apo Doublet 140 F/7
- Backfocus from Thread Bodyend to Focus: see attached data sheet
- little focus change caused by reducer
- APM-Riccardi Universal Apo Flattner 1.0x
volume weight: 2,00 kg
products weight: 1,00 kgdelivery time: on request
product number: APM-RIFLAT1
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