3 replies to this topic

[galacticinsomnia]

Made some changes to the image train and the order of the optics for the flattener and the filterslide, which allowed me to remove one of the spacers for the flattener. 

Still having some red rings around various stars, which could be either unfocused, or some kind of stray IR getting to the sensor, not quite sure yet since I did incorporate a UV/IR Block filter.
 

Sharpstar EDPHII 61ED Triplet with Orion Flattener for Small Refractors +5mm spacer.
57@4min iso 3200 Canon M6ii-FullSpectrum Modified, Lenhance Filter, UV/IR Block Filter up front, NO Calibration Frames, Dithered Every 5th.
Svbony 305pro guidecam and Svbony 106, 60mm guidescope.
Platesolved, PHD2 multistar, APT, Stellarium on iOptron CEM25p Mount.
Run remotely on a $120 mini PC running windows10.
Lightly Processed in Siril, and PS.

 

Clear Skies !!

[DaveD]

Very nice image of this.

 

The red ring could be a reflection from having both filters. Is the IR filter necessary if you have the LEnhance?

[galacticinsomnia]

Very nice image of this.

 

The red ring could be a reflection from having both filters. Is the IR filter necessary if you have the LEnhance?

The red rings come up regardless if I use the UV/IR Block, which is puzzling to me, thinking more of focus.  Will try with another camera tonight for a bit of test. 

I shouldn't need a UV/IR block with Lehance, but oddly stars seem smaller, and color seems better with it.  Just speculative observation. 

Thank you, I am really loving the scope and am trying to play some more with spacers to get even better edge and flatter field.  Hard to do when it is dark.  Fresh cleaned sensor and all optics, so hopefully things will go smoothly.

Clear Skies !!

[galacticinsomnia]

Progress...?
Roughly 5.75hrs integration...
Sharpstar EDPHII 61ED Triplet with (Orion Flattener for Small Refractors +81mm total backfocus).
175@2min iso 3200 Canon M6ii-FullSpectrum Modified, Lenhance Filter, UV/IR Block Filter up front, NO Calibration Frames, Dithered Every 5th.
Svbony 305pro guidecam and Svbony 106, 60mm guidescope.
Platesolved, PHD2 multistar, APT, Stellarium on iOptron CEM25p Mount.
Run remotely on a $120 mini PC running windows10.
Lightly Processed in Siril, and PS.

Comments welcome..

 

Clear Skies !!