TV Delite

[Antares_856]

I’ve got a 4mm and 9mm Delite, which are great.  Does anyone have experience of using the 3mm with a TSA 120?  When seeing I decent this scope would I think handle the 300x magnification for plantetary and close doubles.  However at 0.4mm exit pupil I wonder if the image would be too dim?

[russ]

I have the 18.2mm, 13mm and 11mm DeLite's. I thought of doing the same, expanding the collection for higher powers. Especially with the 10" newt and 4" refractor. But after reading positive comments on Cloudynights about how well the DeLite takes a barlow, I decided to go that route. Plus it saves a lot of money too. So bought a used TV 3x barlow for £70.

After last nights planet extravaganza I can confirm the DeLite loves being barlowed. The 18.2mm DeLite in the TV 3x for 200x, was a sight to behold. Possibly one of my best ever views of Jupiter. And then the 11mm DeLite with the TV 3x for 305x on Mars. Just brilliant. The view was totally unaffected by the barlow, as if it wasn't there. 

Anyway, worth a thought. Your 9mm would become a 3mm and possibly quite cheaply too.

Edited August 7, 2022 by russ

[Antares_856]

That’s an idea I’ve been considering too. I agree about last nights extravaganza 🙂. 
 Jupiter at 275x with the 9mm Delite in the Mewlon was awesome.  I was out till dawn came!