Hi all,
Just seeing if anyone else is using microscope eyepieces for astronomy?
I know not many are suitable for this use.
I took a punt on a small nikon eyepiece advertised on the APM website and wow
did this eyepiece surprise me.
12.5mm, 55deg afov 1.25” barrel and 20mm of eye relief ticked all the boxes. Matched my 9mm Tak abbe ortho for sharpness , colour correction and faint stars.
Has the sharpest field stop of all my eyepieces with good contrast. On axis very sharp. Off axis’s good out to about the last 10% which shows a bit of astigmatism.
This was used on my fsq85edx f5.3 so I’m not sure whether it would improve in my slower f8 scope or using the extender or Barlow. Still need to test it on the moon also.
Overall very impressed with its ortho type qualities , I’ve ordered the 25mm off eBay but this one comes with the 30mm barrel.
Size comparison.