Looking for some feedback form anyone who does (or has used this scope). More specifically, those who use it with an APS-C sensor and field flattener. Which flatterer did you use? And how well did it correct field curvature? I'm in the market for a pair of 900-100mm refractors. In a perfect world of course I'd grab 2 TSA-120 but that's a bit out of my price range. It seems like the ED127 has a very good reputation I'd just like to hear some first hand experiences.
ES ED127 Users
I had the ES FCD100 ED127 OTA and really loved the images as well as the quality of the OTA. I used the Hotech field flattener for the native focal length and the ES .7 Reducer\Flattener and these worked extremely well for me.
Hi Reg,
i have an ed127 fcd1 (first price), which is a very good refractor achieving exceptionnal image quality for the price ($1500 in France)
At native focal length (952mm) the field is flat without corrector/flattener and so, for a aps/c asi2600mm cmos sensor.
i also use a 3 inches flattener/reducer ES 0.7 which is extremly well built and also really effective (perfect flat field). You should go and see pictures on my astrobin site taken with these setups.
Best regards and clear skies
Patrice Boyer, Cannes, France
i have an ed127 fcd1 (first price), which is a very good refractor achieving exceptionnal image quality for the price ($1500 in France)
At native focal length (952mm) the field is flat without corrector/flattener and so, for a aps/c asi2600mm cmos sensor.
i also use a 3 inches flattener/reducer ES 0.7 which is extremly well built and also really effective (perfect flat field). You should go and see pictures on my astrobin site taken with these setups.
Best regards and clear skies
Patrice Boyer, Cannes, France
Patrice B:
Hi Reg,
i have an ed127 fcd1 (first price), which is a very good refractor achieving exceptionnal image quality for the price ($1500 in France)
At native focal length (952mm) the field is flat without corrector/flattener and so, for a aps/c asi2600mm cmos sensor.
i also use a 3 inches flattener/reducer ES 0.7 which is extremly well built and also really effective (perfect flat field). You should go and see pictures on my astrobin site taken with these setups.
Best regards and clear skies
Patrice Boyer, Cannes, France
Oh wow I had no idea it would be flat without a corrector with an APS-C sensor. Thanks for the info!
Yes,
it’s not absolutely perfect but really usable even for good quality image
my ngc7635 widefield version is not cropped and also some others pic, it could givr you a good idea of the result expected.
it’s not absolutely perfect but really usable even for good quality image
my ngc7635 widefield version is not cropped and also some others pic, it could givr you a good idea of the result expected.
Sorry the ngc7635 is cropped, look at ic1396 which is nearly native aps/c (a few pixels cropped only for stacking)
Patrice B:
Sorry the ngc7635 is cropped, look at ic1396 which is nearly native aps/c (a few pixels cropped only for stacking)
That's not too bad at all. I'd def get the flattener though if I do end up getting the scope.
I have the ES127ed FCD-100 and I use the Starizona .65x reducer flattener with it. Here’s an image shot with the asi2600mc and not cropped much at all.
Rosette Nebula in SHO
Rosette Nebula in SHO
Hotech Flattener here, perfect stars on all corners. I also have ES .7 reducer and that also works just as well.
Good luck
Ahmed
Good luck
Ahmed
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