tele vue powermate 2.5x something wrong or is it me

[iwols]

just got my powermate out and looked where the eyepiece would go and its a smaller image than if i look into the end that goes into the diagonal am i going mad?? confused1.gif

[Stu]

Have you put it in the diagonal with an eyepiece and tried it? It will work, promise you!

[Mr Spock]

The Powermate has an overall negative effect, so when you you look thought the eyepiece holder the image is smaller. However, because it's a Powermate and not a Barlow, when you look through the other end the image is large and blurred 

[RT65CB-SWL]

On 19/09/2022 at 08:04, Mr Spock said:

The Powermate has an overall negative effect, so when you you look thought the eyepiece holder the image is smaller. However, because it's a Powermate and not a Barlow, when you look through the other end the image is large and blurred 

Hi @iwols... you may find these articles useful... Tele Vue Optics: Powermates especially the Powermate™ vs. Barlow section at the end and here... Tele Vue Optics: Barlows dedicated solely to Barlow's. 

Edited October 15, 2022 by Philip R