I've been away from astronomy for a while but a few days ago I decided to have a look at Saturn and Jupiter with my Astro Professional 102mm f/7 (on a AZ4 with steel tripod).
When I set the telescope outside, I decided to have a daytime look. I switched through my eyepieces one by one. These are:
-Paragon 35mm (TS-Optics Paragon ED 2")
-Baader Hyperion 17mm
-Baader Hyperion 8mm
-Baader Hyperion 5mm
Now, it has been several years since I last used it. The 35mm was very sharp, couldn't be much better to my eyes.
The 17mm was still very sharp. No issues there, apart from slight CA around bright objects.
But starting with the higher magnifications, I noticed degradation of the image. The 8mm was still very usable, but already you could see more CA and a loss of sharpness.
The 5mm was definitely not wat I expected. It obviously enlarged the object in view but apart from that, it was difficult to get a sharp focus and CA was very much there. I didn't get much improvement from going from 8mm to 5mm because of this.
Viewing Jupiter and Saturn later in the evening confirmed the above.
My question is now: can I contribute this to my eyepieces, or should I look at my telescope for a possible problem?
I'm interested again in astronomy and in the last few weeks I've been reading and contemplating if I should buy a refractor system that is lighter, and which I can use on a lighter mount, and possibly a few
better eyepieces like Morpheus (for example), to stay in the Baader family.
I was thinking about a good FPL53 72mm tot 80mm refractor on a photo tripod. But maybe this question is best in a thread of its own.
Before I'd do this, I would like to know were I can locate the problem above.