Which Powermate???? - Page 2

matt · #21 03-12-2005, 11:55 AM

Steve

What's that little "^" symbol mean in your equations???

janoskiss (Steve H) · #22 03-12-2005, 12:38 PM

^ = "to the power of".
The idea is to get an evenly spaced set of focal lengths, so that the ratio of one available magnification to the next is constant for all magnifications (except the last one of course).

janoskiss (Steve H) · #23 09-12-2005, 11:20 PM

Matt, once you get to try it out, Pls let us know how the Powermate is going.

matt · #24 09-12-2005, 11:32 PM

Will do Steve.

In fact ... had it out tonight very briefly before the clouds rolled in.

It arrived this afternoon. Very impressed with its overall quality and feel. Very nice finish and the optics are substantial with lovely subtle green coatings.

I tried out a couple of "el cheapo" plossl EPs in the Powermate, to put it to the test. I'd read claims it can help reduce problems towards the edge of the FOV ...

and yes... it did! The boost in sharpness and overall quality of view in the last 10 to 15% was well worth the extra cost.

I can't wait to really put it through its paces.

Will offer more on this when I've got mo to add

davidpretorius · #25 10-12-2005, 03:35 AM

Quote:

Originally Posted by matt

I tried out a couple of "el cheapo" plossl EPs in the Powermate, to put it to the test. I'd read claims it can help reduce problems towards the edge of the FOV ...

and yes... it did! The boost in sharpness and overall quality of view in the last 10 to 15% was well worth the extra cost.

this is good!!!

I am pretty set on planetary ep's 5 & 6mm, a 7 & 10 in a Pentax, Radian or vixen, but I think a powermate 2.5 would still be a worth while addition to the stable.

davidpretorius · #26 10-12-2005, 03:38 AM

pssssst matt, update your signature, you have a Televue item. Don't be too obvious about ie bragging, but make sure that "POWERMATE 2.5X" takes up 1 whole line!!!

Robert_T · #27 10-12-2005, 06:58 AM

I've only had the 2.5 powermate for a month now, but am very impressed with it's performance both visually and in imaging ... might have to offload the orion 3x barlow as it ain't getting much use anymore.

one quibble with the power mate is the screw compression ring is stiff has a "rough" action and doesn't feel the same "quality" as the rest... anyone else experience this?

matt · #28 10-12-2005, 11:05 AM

Rob

My compression ring was the same at first but seems to be getting better with more use.

Might just need a little (very carefully appplied) WD40... or just keep tightening and loosening until it wears a little and hopefully becomes smoother?

If it's any help my MoonLite focuser course focus was also a little rough to start with but has improved out of sight with use.

PS ... DaveP ... am updating the signature as we speak!!!!

davidpretorius · #29 10-12-2005, 01:56 PM

Quote:

Originally Posted by matt

Rob

PS ... DaveP ... am updating the signature as we speak!!!!

tck tck tck,

not big enough!!! its your first TV, i said not to be bragging, just god damn obnoxious.

when i get one, look out. IIS will be hacked and every signature will read "DAVO HAS A TELEVUE"

can't wait for you to post it around australia to your good mates to try. that is very kind of you to offer to do that!!!!