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Thats cheap .......

ObscuredbyClouds

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JamesF

JamesF

Posted
Posted

On the other hand, they do a 2x barlow for £8. If you need a 1.25" extension tube or a cheap housing for a webcam mod then as long as the lenses can be removed that's probably the cheapest way it can be done :)

James

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fredster

fredster

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For a cheap eyepiece that is well worth having checkout the Smart Astronomy Stirling Plossls:

http://www.ebay.co.uk/itm/TELESCOPE-EYEPIECE-1-25-12-5MM-STERLING-PLOSSL-FREE-WORLD-WIDE-SHIPPING-/350576091165?pt=LH_DefaultDomain_0&hash=item519ff6a01d

They are superb. I had the whole set at one point but replaced them with the ES 82's but optically the Stirling will give the TV Plossl something to think about. I've kept back a pair of 12.5's just in case i get a binoviewer.

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mdstuart

mdstuart

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I doo appreciate the FOV point but maybe there is something else..eye relief or something. Surely an organisations like Teleview, Vixen & Meade would not make something that was not of any use?

http://www.optcorp.com/product.aspx?pid=1245-10566

http://www.optcorp.com/product.aspx?pid=730-343

There must be two sides to this story...

Mark

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sologuitarist61

sologuitarist61

Posted
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I have just bought one of those top of the range £8 barlows!! Now before anyone thinks I've lost my mind its going to permanently sit on the end of my laser collimator ;-)

Hey, try it on the scope anyway - you never know it might actually be OK :smiley: Let us know if it is and we can all get one!

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michael.h.f.wilkinson

michael.h.f.wilkinson

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I doo appreciate the FOV point but maybe there is something else..eye relief or something. Surely an organisations like Teleview, Vixen & Meade would not make something that was not of any use?

http://www.optcorp.c...?pid=1245-10566

http://www.optcorp.c...spx?pid=730-343

There must be two sides to this story...

Mark

Some people like looking through a straw ;)

I think these EPs are a leftover from the days when F/10 was not considered that slow (the days of the F/15 Polarex achromats). A 40mm gives a useful exit pupil, and these scopes only had a 1.25" focuser (if you were lucky, they might be 0.965"). I had a Vixen 36mm Plossl in my C8 when I started out, because it too came with a 1.25" visual back. It gave a 3.6mm exit pupil, but the eye relief was uncomfortably large (32mm or so). As it (and this 40mm under scrutiny) lacked a rubber eye-cup, you had to "hover" behind the EP to get the image. The 40mm Paragon is SO much more comfortable than the old Vixen Plossl.

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rwilkey

rwilkey

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I bought a similar unbranded one from a guy in Hong Kong a few years back, looks like the same one, the optics were passable but with uncomfortably long eye relief (hard to get the sweet spot), but what annoyed me most was that the thread at the nose end was not quite 31.7mm and that you could not screw on standard filters. I quickly disposed of the ep. I would definately NOT recommend it. The price and the poor reputation of the seller sums it up in my view.

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Moonshane

Moonshane

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never used their eyepieces but have heard several people express surprise at them and how reasonable they were for the price. the scopes we know about but how many people have actually looked through a Seben eyepiece?

for solar observing I think a 40mm Plossl would work well in my scope (1600mm focal length) although most of the time the 32mm is OK. I agree though the long eye relief would be horrible and impractical for solar use for me as the Baader eyepiece filter I use (obviously in conjunction with a white light film filter) is highly reflective and all I'd see is my own eye. I also had a 40mm 1.25" generic plossl and quickly fell out with it.

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Capricorn

Capricorn

Posted
Posted

It depends what you actually want the 40mm for.

I bought a cheap one simply because it showed a little bit more then a 32 did.

Wasn't in the least bothered about how good an image, I just want as much as possible of the sky in view.

Reason was for trying to align a goto Mak. :rolleyes: :rolleyes:

For the first star I found that the chances of getting it in view are not great so even the tiny bit the 40mm added was worth it.

As said didn't care how good it looked, a slight blur on the ege is better then a sharp star no where to be seen. :eek: :eek:

Think someone in the US does a 53 or 56mm plossl. :grin: :grin:

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