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Top Opticians in the US for reflectors

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#1 azure1961p

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Posted 16 February 2013 - 06:05 PM

Everyone mentions Zambuto, Lockwood, royce and maurizio di sciullo for reflectors but no other names seem to surface. Another is out there - Peter Ceravolo in Canada comes to mind but little else . Anyone have any other names or comments?

Pete

#2 ausastronomer

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Posted 16 February 2013 - 06:47 PM

Hi Pete,

Maurizio Di Sciullo used to sell his scopes under the name of Excelsior Optics. These were designed as specialist long focus tubed planetary newtonians, either F6 of F8. To my knowledge Maurizio hasn't produced a scope or mirror in about 10 years, due partly I believe to poor health. If you can find one second hand they are outstanding. Similalrly Peter Ceravolo hasn't built an amateur scope in about the same time period, concentrating on scientific and Government type work over the past 10 years. If you can find one of his second hand they are outstanding.

The other 3 all have excellent reputations. Along with Mark Suchting in Australia these are the only people I would consider buying my next mirror from, if I ever have a need to buy one. I have eliminated OMI on the basis that they only work with 2" thick glass substrate, which doesn't suit me or my scope design parameters. In the future moving forward I will only ever order a mirror made from minimum thickness substrate in the interests of fast cooling. In smaller slower apertures I would also consider people like Gordon Waite, Alan Raycraft, Dick Wessling and a few others.

Cheers,

#3 Markovich

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Posted 16 February 2013 - 07:50 PM

Steve Swayze makes fine mirrors.

#4 Pinbout

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Posted 16 February 2013 - 08:31 PM

Steve Swayze makes fine mirrors.


say it three times, swayze swayze swayze.... :bow:

#5 azure1961p

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Posted 16 February 2013 - 09:45 PM

Thanks guys. I'm sorry to hear about Maurizo having health issues. Gosh I remember his posts in 96' on the AOL Observers Outpost where he'd post these stunning photos of Jupiter made with a ten inch of his crafting. Outstanding. I recall Ceravolo going commercial/govt but I hoped he might still have done work for the amateur. The others I've heard of - Swayzee to be sure.

Thanks for the input.

Pete

#6 jgraham

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Posted 16 February 2013 - 10:00 PM

Ed Jones is one of the best that I know. He worked with Dick Wessling for many years.

#7 aatt

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Posted 16 February 2013 - 10:47 PM

Terry Ostahowski seems to be very well regarded, but I don't know if he can match Carl Z et al.

#8 galaxyman

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Posted 16 February 2013 - 11:42 PM

Steve Swayze makes fine mirrors.


say it three times, swayze swayze swayze.... :bow:


Yep, as in my 22" Telekit.

Karl
E.O.H.


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ES 6" f/6.5 achro. Good one
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#9 zawijava

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Posted 16 February 2013 - 11:51 PM

Waite; Stevens; and I think there's a Kennedy out there as well(?)

Everyone mentions Zambuto, Lockwood, royce and maurizio di sciullo for reflectors but no other names seem to surface. Another is out there - Peter Ceravolo in Canada comes to mind but little else . Anyone have any other names or comments?

Pete



#10 siriusandthepup

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Posted 17 February 2013 - 12:11 AM

Don't forget John Hall. Pegasus Optics.
John will still do a nice 12" to 25" size range mirror for ya.

#11 Calypte

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Posted 17 February 2013 - 12:26 AM

Terry Ostahowski seems to be very well regarded, but I don't know if he can match Carl Z et al.

Why do you think he can't?

#12 GlennLeDrew

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Posted 17 February 2013 - 12:37 AM

Ceravolo hasn't gone completely over to industrial optics. He makes a 12" field-corrected Cassegrain, of the Dall-Kirkham flavor.

#13 jpb30

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Posted 17 February 2013 - 03:47 AM

Terry is certainly one of the top in US

Mirrors of Z was tested by a lab pro in France, result: good optics but not very exceptional

Mirro Sphère in France makes better mirrors, but more expensively...

#14 Sgt

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Posted 17 February 2013 - 04:58 AM

Do you have a link?

#15 nirvanix

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Posted 17 February 2013 - 05:54 AM

I've heard good things about Normand Fullum but I don't own one of his mirrors. I'm considering him for a refigure.

#16 dpwoos

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Posted 17 February 2013 - 08:35 AM

I've spent some time with a couple of Norm Fullum's scopes at Stellafane, and the views were outstanding!

#17 nirvanix

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Posted 17 February 2013 - 11:09 AM

I've spent some time with a couple of Norm Fullum's scopes at Stellafane, and the views were outstanding!


Thanks for letting me know dpwoos, that gives me some confidence to use him. He seems like a very enthusiastic craftsman to say the least!

#18 steelhead

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Posted 17 February 2013 - 11:21 AM

Norm is highly recommended!

#19 Starman1

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Posted 17 February 2013 - 11:57 AM

Zambuto test:
http://www.astro-for...-Zambuto-Newton
http://www.astromart..._post_id=170264
And you can find literally hundreds of posts and threads extolling the virtues of the star images using a mirror from Carl Zambuto.

There have been many threads here on CN asking about premium mirror makers and there are probably 20-30 of them, many of whom haven't been mentioned here (e.g.OMI, Galaxy, Nova, Mark Harry, etc.) but whose names will probably be brought up soon.

Just remember, we do not pay for "the best optics money can buy", we buy "the best optics money can buy for a reasonable price".

#20 HunterofPhotons

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Posted 17 February 2013 - 12:01 PM

Paul Jones at Star Instruments.

dan k.

#21 Howie Glatter

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Posted 17 February 2013 - 01:19 PM

One of the best hasn't been mentioned yet -
Michael Spooner

#22 dpwoos

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Posted 17 February 2013 - 02:19 PM

And, as I said in another post, many clubs have one or more members that are top-notch mirror makers. There is a guy in our club that does outstanding work, and I would be (and am) as thrilled with one of his mirrors as I would be with anyone else's. I would always check in with these local mirror makers first.

#23 John Kuhl

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Posted 17 February 2013 - 02:52 PM


+1 on Mike Spooner, great mirrors.

#24 careysub

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Posted 17 February 2013 - 02:53 PM

Zambuto test:
http://www.astro-for...-Zambuto-Newton


Quite impressive. For the whole mirror the RMS is 1/54.7 wave (Strehl 0.987). When the central zone is masked out (as in a Newtonian reflector usage) it is 1/66 wave (Strehl 0.991), and it is extremely smooth.

I'd pay Carl's prices for that mirror!

(Amusingly Google Translate thinks that "Glattesten" - smoothest (I think) - means "Smooth Estonians").

He does say that it is below the level of top manufacturers (if the translation is correct) but I think that we are now talking about mirrors that come at come multiple of Carl's prices for slight improvements that are beyond the ability of any amateur to detect.

#25 Darren Drake

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Posted 17 February 2013 - 03:03 PM

No one has been making mirrors longer than Dan Joyce of Chicago. He will e ven take on students and let them make mirrors under his instruction.






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