APM-Riccardi Universal Apo Flattner 1.0x - Model 2
Our new, universal flattener for Apo's was calculated from the famous optical designer Massimo Riccardi.
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 longer focal lengths and slightly slower focal ratios. It currently represents the limit of what is possible.
There is no comparable flattener with such good apochromatic longitudinal and lateral aberrations 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.
new flattener allows a generous working distance from the thread to the
focus of more than 115 mm, see attached file, so that all common
accessories such as will filter wheels will find space.Model 2 is suitable for the following Telescopes and Telescopes with similar f-ratio :
- APM LZOS Apo 100 F/8
- APM LZOS Apo 130 F/9
- APM LZOS Apo 152 F/8
- APM FPL51 Apo 152 F/8
- APM LZOS Apo 175 F/8
- APM LZOS Apo 203 F/7
- APM LZOS Apo 203 F/9
- APM LZOS Apo 228 F/9
- APM LZOS Apo 254 F/9
- Backfocus from Thread Bodyend to Focus: see attached data sheet
- little focus change caused by reducer
- APM-Riccardi Universal Apo Flattener 1,0x - Model 2
The all new APM-Riccardi Universal Apo Flattner 1.0x Model 2 for Apo Telescopes.