Stellamira 90ED adjustable flattener

[MonsterMagnet]

Hi All.

I've now got the 0.8x adjustable flattener for this scope but want to double check the instructions for fitting.  The below is the instructions from FLO but the value "A" to the imaging train is undefined.  I assume "A" is the standard 55mm backfocus to the camera plus filter wheel additions etc?

Thanks.

MM

 

[CraigT82]

The starfield unit is pretty much the same thing, and on that listing there is this review that might be helpful…

 

[Adreneline]

On 06/10/2024 at 10:23, MonsterMagnet said:

the value "A"

.. is a bit misleading and difficult to interpret.

I have the 1x reducer and mine is set to 20.36 as per the table, using the scale on the extension barrel. Once you've adjusted the r/f to the setting in the table you have 55m to the sensor, so with my 6.5mm back focus plus 20mm filter wheel I have about 28mm to make up with spacers, etc.

So for the 0.8x you adjust the barrel to 2.4mm and then it is 55mm to the sensor.

HTH / makes sense.

Edited October 7 by Adreneline
typo