Interesting article on eyepieces

[ColHut]

Can be found here. http://astrotechnika.wz.cz/Optika/Literatura/EVOLUTIONofEYEPIECES.pdf?bcsi_scan_ 09886937D8E6245B=0&bcsi_scan_filename=EVOLUTIONofEYEPI ECES.pdf
It is a little dated but very interesting reading.

cheers

[CoombellKid]

Link doesn't work for me

regards,CS

[Rodstar]

Nor for me.

[wavelandscott]

I think you have to be a member (paying or longstanding) to get in and see the forum stuff...

[ColHut]

I downloaded it the other day. I will upload here then...

[MarkN]

Think I came across that article some years back. Sorry, but in my opinion the bloke is a bit of a Luddite. Reckoned most if not all modern oculars were rubbish and his antique collection of whatevers represented the bees-knees of eyepiece design.

Was he still carrying on about the telescope maker who dudded him?

Mark.

[ColHut]

He was unimpressed by the coomercial wide-field eyepieces available in the early 1990s (especially the Nagler type I but not the panoptics) that is true. He is/was I thik a FRAS. My electronic copy is at work, i will put it up tomorrow.

[ColHut]

Found another link that works - edited in original post

[ausastronomer]

As Mark indicates, that article has been floating around for several years.

Chris Lord who wrote it, runs Brayebrook Observatory and he had it listed on his own website for at least the last 7 or 8 years, that I can remember.

http://www.brayebrookobservatory.org/

Chris is in the process of changing domain hosts and re-doing his website, which will be back up in the next few months. It has been down since about April.

You should check back every couple of months to see when he gets it back up. That is one of many, very interesting articles he has on it. Whether his opinion is correct or not is certainly open for discussion, but there is no denying the amount of time he has put into the research behind the science of what he discusses.

Clear Skies
John B

[ColHut]

Interesting in this regard is TMB's re-introduction of the monocentric for planetary observers. - There Mike - one to replace your GSO plossl!