Tele Vue Powermate 2.5x

[John]

If you are in the market for one of these this might be of interest if they still have it in stock:

http://tinyurl.com/3co5pp

TV Powermates are reputed to be superb and this one looks a good buy to me. Free P&P as well

John

[Ant]

Not quite what this thread was for, but can someone explain to me what they mean by this?

The 2.5x Powermate is ideal for long focus CCD imaging or film photography, magnifying about 4x. It is an attractive high performance alternative to eye piece projection. Fitted with a 1.25inch barrel, it includes a brass clamp ring, filter threads and captive screw. (It also accepts the photographic adapter ring PTR-1250).

Is it a 2.5x barlow or a 4 x barlow - I know that the distance between barlow / CCD or barlow / EP increases or decreases the magnification. It's just I have never seen it advertised like that!

Ant

[SteelRat]

The pic shows a 5x - so who knows.

[John]

I suspect the pic is a stock one. Tele Vue claim that the Powermates are not barlow lenses but "image amplifiers". Check out www.televue.co.uk to find out what that means

I've owned the standard TV 2x and 2.5x barlows and they were excellent.

John

[Brass n glass]

Powermates come with a leaflet that includes an article by Al Nagler. It says: "I had to go beyond the simple Barlow concept to achieve the goal of a compact, high power, fully corrected image amplifier. Powermate consists of a negative achromatic doublet plus a positive 'pupil correcting' doublet." I have a 4X Powermate which does a much better job than my Meade 2X Barlow despite its higher power - Hugh.

[SteelRat]

I suspect the pic is a stock one

Really?

Edit; 'spose £85 inc delivery IS pretty cheap though. Good find.

[James]

I've been humming and hawing over one of these for ages and have now taken the plunge so we'll see how it goes. If all is well £89 is a pretty good price.

James

[russ]

I've owned the entire Powermate set....not at the same time i hasten to add. Bought the 2.5x first which was worth every penny in the Intes 603. Then swapped the 2.5 for a 5x to go with my newt. And then swapped the 5x 1.25" for a 4x 2" (which is a beast.....huge/heavy). All were faultless whether for imaging or for visual. The 4x combined with a 19mm Panoptic in an ED100 was absolutely breathtaking on Saturn.

And £89 is a bargain. I paid £95 SH for the 2.5x.

Russ

[barkis]

I have just ordered this today. I hope it is still up for sale. It is still listed on their website, but I don't know how quickly the update it.

Got an order confirmation email, So Fingers crossed.

Ron.

[James]

Hope you can get one - mine arrived pretty quickly and I've been able to use it as well - nice!

James

[barkis]

Yes James, by all accounts they are a very nice addition to the astro kit. If I use it as an image amplifier for imaging, I am going to need an adaptor too I think.

Ron.

[centroid]

And £89 is a bargain. I paid £95 SH for the 2.5x.

I also reckon that's a good price. As I remember, I paid something like £155 for my x5 Powermate.

Dave

[John]

I suspect the pic is a stock one

Really?

Edit; 'spose £85 inc delivery IS pretty cheap though. Good find.

They could have used the correct stock pic though

[barkis]

Somebody on Astro Buy Sell Is also selling one of these 2.5's for £100

Ron.