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Howlt
sage
Reged: 02/14/07
Posts: 345
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There is still a difference between my old CaK PST that was just repaired and the newer one. It is not as distinct as before, but the repaired one is a tiny bit dimmer. I had them mounted on a binocular mount and used identical eyepieces. I also swaped the scopes just to be sure. The performance is close enough that I am not going to send it back. If somebody thinks there is a reason I should contact Meade about this, please let me know.
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NickH
Post Laureate
Reged: 05/09/06
Posts: 3717
Loc: Wiltshire, UK (near StoneHenge...
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Stick a webcam on it and a 2X barlow, then decide!
It's the only way to tell with the CaK scopes easily
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Richard B. Drumm
Pooh-Bah
Reged: 07/14/05
Posts: 1486
Loc: Albemarle Co. Virginia
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Time to stick in a new iteration of the infamous -LIST- 
There've been a bunch of new entries. This is a list of Hydrogen alpha PSTs, because of the "rust" issue most of the older ones have had. To my knowledge there's been no major problem with the CaK scopes, so I haven't added their serial numbers here. They are a tad hard to use with aging eyes, the violet color is so far up there and my eyes just aren't very sensitive to that energy level any more... Oh well...
Rich
---------------------------------
94017 sick - Rod Nabholz "rnabholz" in Iowa. Repaired with clear blue objective.
94101 sick - Claudio "Ford Prefect" in Roma. Repaired with blue objective.
94115 sick - "PEterW" in SW London, Repaired with clear blue objective.
94229 sick? - Rick in Tokyo
94230 sick - Joe Bergeron in NY - repaired twice, last time with clear blue lens.
94262 sick - JHM in Colorado.
94343 sick - John Kocijanski in NY. Repaired by Coronado once, now sick again!
94366 sick - Phil Wheeler in LA. Purchased in July 2004.
94369 sick - Mike McShan in Oklahoma City. Sending it in for repair.
94595 sick - Chris Reich "Bucephelus" in California. LOST BY MEADE.
94600 sick - Mogster in Manchester. Replaced by Meade Germany, see 103825
94606 sick - Gary Meehan "AXAF" in Boston. Repaired by Meade with a clear blue objective.
94645 not sick - John Hoare in Kildare, Eire
94769 sick? - Dave LoPresti in Conn.
94991 sick - David "ad701xx" in Oregon. "Replaced objective lens and ITF. Clean optics"
95009 sick - Aaron McNeely in Indiana, repaired with blue/transparent obj. No bubbles.
95104 was blue, now gold - Tom Lawson "Guner" in NJ - repaired twice!
95166 sick - James Suarez "Jim7728" in NYC, repaired twice, 2nd time with blue/clear objective & new ITF/etalon. Works great now.
95414 sick - Mike Krzywonski in Texas, repaired by Meade, OK now.
95424 sick - Julio Cesar in Madrid - before repair. Replaced with new scope.
95594 sick - Brian D, "Happy Idiot" in NY. Repaired with blue objective & ITF. Sold to Keith Elliott "cocobolo" in British Columbia.
95769 sick - Joan Koch "StargazerJMK", Tacoma. Repaired with clear blue objective & ITF/etalon.
95919 sick - Ron T. "AstroRon" in Maine.
96038 not sick - Stephen Ames "darkstar528" in Kentucky.
96144 sick - Bruce Cosgrove "BRCoz" in Calif. Repaired with clear blue objective.
96264 sick - Jim Walsh in Mansfield, Texas. Repaired with blue objective.
96325 sick - DAVIDG in Delaware. Repaired with clear blue objective & ITF/etalon.
96367 sick - "Zoomster" in Fla.- now repaired.
96400 sick - "Mogster" in Manchester UK, replaced by Meade Germany with blue #103825
96448 sick - Mike Rosolina "Special Ed" in West Va. Repaired with clear blue objective & ITF/etalon.
96512 sick - Dave "DMI" Left a message for Mr. Wiggins.
96603 sick - K.W. Tong "TONGKW" in Hong Kong. Sent to Meade (Coronado), now repaired.
96605 sick - SO King-yan Oldfield in Hong Kong.
96618 sick - Doug D. in Virginia. Repaired with clear blue objective & ITF/etalon.
96682 sick - "$pace @ce" in Vancouver, Washington.
96714 sick - Darren Hiebert in Alabama, repaired, sick again!
96969 sick - CESDewar in Georgia, repaired with blue objective.
97148 sick - Bill Leslie "bill-in-forres" Scotland. Replaced by BC&F (Meade).
97449 not sick yet, blue - Steve Durham in NY
97468 sick - Bruce Raemsch "Carpe Noctum" in Cal., returned, lost by Meade, replaced.
97491 gold - Daniel Steinke in Illinois - bought used, repaired?
97575 sick - "EmielVeldhuis" in Zwolle, Netherlands. Repaired with gold obj by Meade Germany, then replaced by them with new, blue objective scope.
97884 sick - Seremban "simonlee" in Malaysia. Repaired with blue objective.
98031 sick - Brian "Solar B" in Scotland. Repaired with new blue objective, new ERF/BF/Spacer.
98131 not sick, blue/transparent - Gustavo Phols in Mexico (already repaired?)
98569 sick - Joplin Motisher. Repaired with clear blue objective & ITF tested.
98670 sick & gold (yellow?) "Davo" in Scotland
98773 sick - Gregor(slo) in Slovenia (the old scope)
98994 sick - Steve Riegel "molniyabeer" in Italia, repaired, blue objective now.
99193 sick - Karoly "kfjpal" in Hungary. Might send it to Meade Germany or Broadhurst, Clarkson & Fuller in UK.
99309 sick - Michelle "JARSHEART" in Fla. "Replace objective lens and ITF, clean optics."
99335 sick - Kelly "Trombone" Repaired with clear blue objective & ITF/etalon. Traded to Bobby "Strgazr27" on Long Island?
99492 sick - "Solar1" in Texas. Sent back to Meade 3/8/07
99493 sick - Adrian Guzman "solmax" in San Jose, CA. Repaired with clear blue objective & ITF/etalon.
99520 sick - DanJ in North Carolina. Repaired, new blue objective, cleaned optics.
99729 sick - Kurt Fisher, "canopus56" in Salt Lake City. Repaired with clear blue objective.
99760 sick - (brand new in box - Discovery Store) - Steven Kim "kimsc321" in NJ
99801 unknown -- STOLEN -- Erika Rix in Ohio
99807 sick - "Ike" Stewart, Repaired with clear blue objective & ITF/etalon.
100051 sick - Trevor Durity in Galway, Eire (Ben Ritchie's old scope) - sent to Meade for repair. --REPLACED--
100292 not sick - Marcus Thompson "JAT Observatory" in Pennsylvania.
100349 not sick - Chris Schroeder in Wisconsin
100353 not sick - Jeff Wilson "birddog06" in Oregon.
100360 sick - Rick in Tokyo
100407 slightly sick - Stephane in Belgium.
100625 sick - Don Waid & George Duke in Florida.
100657 sick - Barry "CactusButt" in Texas. Will be sent back after TSP 2007.
100658 sick - Jim from NJ Night Sky. Repaired with clear blue objective & ITF/etalon.
100706 gold - Ed Kessler in PA, sold to JD Sherman in New Jersey?
100727 gold - Bill K. "SprintCar Driver" in California
100914 gold - Quentin Rakestraw
100922 gold - justin2992 in Philly
100942 gold - LBartolomei in Minnesota
101040 gold - John Graham "jgraham" in Ohio.
101073 gold - Bart Goosens in Belgium.
101103 gold - Emiel Veldhuis in Zwolle, Netherlands.
101147 gold - Julio Cesar's friend Oriol in Barcelona
101168 gold - Julio Cesar's replacement PST
101230 gold - me
101306 gold - Luke Leege "LLEGE" in Rochester
101312 gold - "dengwer" in Texas.
101337 gold - Gerald Bokowy "chemkelly" in Illinois
101339 blue - Dean Mohr, Salt Lake City
101344 blue - Rob Willett in London.
101369 blue - James Suarez "Jim7728" in NY - the new one.
101489 blue - FLNightSky in Florida?
101526 blue - spacydee in Los Angeles, California.
101627 blue - Gregor(slo) in Slovenia (the new replacement scope)
101680 blue - Bill "Bonco" in Fla. Not sick.
101742 blue - "EmielVeldhuis" in Zwolle, Netherlands, new scope, best contrast.
101860 blue - Trevor Durity in Galway, Eire. The replacement scope.
101976 blue - Bill "Downward Bound" in Seattle.
101978 blue? - "Tarsier"
102xxx clear-blue/sick/bubbles - (brand new in box - Adorama NYC) - Steven Kim "kimsc321" in NJ
102024 clear-blue/sick/bubbles - (brand new in box - #2 Adorama NYC) - Steven Kim "kimsc321" in NJ, bubbles are very small.
102196 blue - Adam "soreneck" in Toronto
102228 blue - "omahaastro" in Omaha. No bubbles.
102392 blue - Bill Leslie, "bill-in-forres" Scotland. Free replacement for # 97148.
102701 blue - Myles in Seattle.
103552 blue - Ben Ritchie in Bosham, UK, new scope, sold to Mark Walters, "sol" in Wales.
103825 blue - "Mogster" in Manchester, UK, replacement for sick scope.
---------------------------------
The first group are the ones that had the problem. Reflective blue lenses, one transparent...
The second group are the gold ones.
The last group are the new type, with blue lenses (transparent). Not sick.
If your PST or BF is sick, call Coronado/Meade:
1 (800) 626-3233 - Dave Wiggins ext 6289
Wayne.Motonaga@meade.com -- Not actually in the repair dept. Told Chris to "Be patient." :-(
Eddie Salgado -- "Very helpful"
For Meade PST repairs in Europe, contact Meade Germany: service.apd@meade.de
http://www.meade.de/en/about-us/employees.html
Sven Koenigsfeld - Tel. 0049-2872-8074-153
--------------------
AKA Richard Drumm The Astronomy Bum
Orion Atlas 10 (10" Newt on an equatorial mount)
Celestron 15x70 SkyMaster Binocs
Coronado Ha PST
President, Charlottesville Astronomical Society
IOTA member
38° 10' 57"N, 78° 23' 09"W
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Andy D
sage
Reged: 12/03/06
Posts: 207
Loc: Taranaki, New Zealand
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Quote:
To my knowledge there's been no major problem with the CaK scopes, so I haven't added their serial numbers here
I'd disagree with that statement Richard, - a considerable number of Ca PSTs seem to have astigmatism. But there's little point in listing the 'sick' Ca PSTs s/n, as it is not a 'batch' issue. (unlike the faulty ITF coatings) It's a great service you're doing for the Ha PST information BTW.
andy
--------------------
http://pbase.com/andy_dodson
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colinsk
Carpal Tunnel
Reged: 01/17/08
Posts: 2170
Loc: CA
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95141 - Repaired - Now Clear Blue
--------------------
Mahalo,
Colin Kaminski
Coulter 10.1" Dobsonian
TV-76/Baader Film White Light
LS60T/DS50/FT/BF1200
LDX-75
AT Voyager
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NickH
Post Laureate
Reged: 05/09/06
Posts: 3717
Loc: Wiltshire, UK (near StoneHenge...
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Richard
I would concur that this statement on the CaK PST is wrong, I know of around 12 that are defective, which out of the 14 people I know who have one, is a staggeringly high failure rate.
All had astigmatism, in one for or another.
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Ford Prefect
super member
Reged: 09/25/05
Posts: 196
Loc: Italy
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This morning I had the possibility to check it for few minutes before going to work.
Now it works great. The image is noticeably sharper and the particulars on the Sun are much easyer to be seen than before the repair.
PST #94101
--------------------
Claudio from Rome
Celestron C5 on Giro-Mini Mount
StellarVue F50,10x50 and 15x80 binoculars
Coronado PST
"Los que van con prisa, nunca ven el cielo"
"Considerate la vostra semenza:
fatti non foste a viver come bruti,
ma per seguir virtute e canoscenza"
Dante, Inf. XXVI, 118-120
Edited by Ford Prefect (02/01/08 06:47 AM)
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JimW
professor emeritus
Reged: 08/31/04
Posts: 696
Loc: Mansfield, Texas
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Congratulations Claudio! I had the same experience upon receiving my repaired PST - I'm very happy with the results.
--------------------
Jim Walsh
18" Obsession UC #1 AN/SC
SV90T (Stardust Blue)
DM-6 mount (on order)
PST
Leupold Wind River 8x42
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Julio Cesar
sage
Reged: 02/24/04
Posts: 215
Loc: Madrid, Spain
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Congratulations Claudio.
BTW, are you Spanish? The sentence in your signature is in Spanish language and it's sadly true !!! Who said that?
--------------------
Obession 18UC Dobsonian AN/SC f/4,2
Meade LX200 Classic 7inch Maksutov-Cassegrain f/15
GSO Newton 8inch f/4
Takahashi TSA102N Apo Refractor f/8
William Optics Megrez 80 Apo Refractor f/6
Takahashi FS60C Apo Refractor f/5,9
Miyauchi BS77i Petzval semi-apo binoculars
Canon 10X30IS
Coronado PST (golden)
http://www.nocturlabio.com
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colinsk
Carpal Tunnel
Reged: 01/17/08
Posts: 2170
Loc: CA
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Quote:
Congratulations Claudio.
BTW, are you Spanish? The sentence in your signature is in Spanish language and it's sadly true !!! Who said that?
My spanish is rusty. Is it "Those who go through life with haste never see the sky"?
--------------------
Mahalo,
Colin Kaminski
Coulter 10.1" Dobsonian
TV-76/Baader Film White Light
LS60T/DS50/FT/BF1200
LDX-75
AT Voyager
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Ford Prefect
super member
Reged: 09/25/05
Posts: 196
Loc: Italy
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Hello, I'm Italian but I'm studing Spanish and have some friend in Spain.
The sentence is from a Spanish song, by Tunxtu.
It means something as: "People who are in a hurry, never see the heaven"
--------------------
Claudio from Rome
Celestron C5 on Giro-Mini Mount
StellarVue F50,10x50 and 15x80 binoculars
Coronado PST
"Los que van con prisa, nunca ven el cielo"
"Considerate la vostra semenza:
fatti non foste a viver come bruti,
ma per seguir virtute e canoscenza"
Dante, Inf. XXVI, 118-120
Edited by Ford Prefect (02/03/08 09:22 AM)
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Julio Cesar
sage
Reged: 02/24/04
Posts: 215
Loc: Madrid, Spain
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Quote:
Hello, I'm Italian but I'm studing Spanish and have some friend in Spain.
The sentence is from a Spanish song, by Tunxtu.
It means something as: "People who are in a hurry, never see the heaven"
Hi Claudio. Thanks for the info about the Spanish sentence and sorry for the off-topic.
My wife is studying Italian and we visit your beautiful country very often. Napoli is our next target already booked for the beginning of March.
My favourite sentence in Italian language is: “Forza e coraggio che dopo aprile viene maggio !!!”
P.S.: my golden coated PST seems to work flalessly and no rust is visible at all through the objective, so far (fingers crossed).
--------------------
Obession 18UC Dobsonian AN/SC f/4,2
Meade LX200 Classic 7inch Maksutov-Cassegrain f/15
GSO Newton 8inch f/4
Takahashi TSA102N Apo Refractor f/8
William Optics Megrez 80 Apo Refractor f/6
Takahashi FS60C Apo Refractor f/5,9
Miyauchi BS77i Petzval semi-apo binoculars
Canon 10X30IS
Coronado PST (golden)
http://www.nocturlabio.com
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Ford Prefect
super member
Reged: 09/25/05
Posts: 196
Loc: Italy
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Quote:
Hi Claudio. Thanks for the info about the Spanish sentence and sorry for the off-topic.
Well, so we will try to don't exaggerate with the OT.
Meanwhile, here is still cloudy but yesterday there were half an hour of sun and I managed to check the Sun again with a 20mm SWA eyepiece, that works great with PST.
Quote:
My wife is studying Italian and we visit your beautiful country very often. Napoli is our next target already booked for the beginning of March.
Napoli is a nice city.
If you go, try to have a trip to the top of Vesuvio volcano: it's a very impressive place.
There is an old astronomical observatory somewhere on the mountain but I don't remember exactly where.
To stay In Topic, in Napoli there is one of the few modern museums of science in Italy:
http://www.cittadellascienza.it/
An interesting one is in Firenze, where you can see the original telescope by Galileo.
--------------------
Claudio from Rome
Celestron C5 on Giro-Mini Mount
StellarVue F50,10x50 and 15x80 binoculars
Coronado PST
"Los que van con prisa, nunca ven el cielo"
"Considerate la vostra semenza:
fatti non foste a viver come bruti,
ma per seguir virtute e canoscenza"
Dante, Inf. XXVI, 118-120
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Julio Cesar
sage
Reged: 02/24/04
Posts: 215
Loc: Madrid, Spain
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Thanks for the info Claudio. I'll try to visit the science museum of Napoli and of course the Vesuvio.
It seems to me that a 20mm eyepiece in the PST is too long focal lenght and not too much fine details will be seen with this magnification (20X). With my replaced "golden coated" PST I can use the TV Nagler zoom 3-6 at 5mm position (80X) and even sometimes at 4mm (100X). Now I got used to this magnification and I'm very happy with the quantity of details I can get from this little solar scope. Try with a shorter focal lenght eyepiece. I even sell my 18mm CEMAX eyepiece as solar images that it rendered were too small for my tastes.
--------------------
Obession 18UC Dobsonian AN/SC f/4,2
Meade LX200 Classic 7inch Maksutov-Cassegrain f/15
GSO Newton 8inch f/4
Takahashi TSA102N Apo Refractor f/8
William Optics Megrez 80 Apo Refractor f/6
Takahashi FS60C Apo Refractor f/5,9
Miyauchi BS77i Petzval semi-apo binoculars
Canon 10X30IS
Coronado PST (golden)
http://www.nocturlabio.com
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Richard B. Drumm
Pooh-Bah
Reged: 07/14/05
Posts: 1486
Loc: Albemarle Co. Virginia
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Nick & Andy:
I guess I haven't been paying much attention to the CaK PSTs and the astigmatism problem evaded my notice! Thanks for the head's up!
My club has one of them but I haven't spent much time using it, my eyes just aren't very sensitive up at that color anymore so I can't see much. I'd have to have a chilled black bag (with vent holes so I can breathe) to put my head & the eyepiece into in order to use it much. It's a tough little scope...
Rich
--------------------
AKA Richard Drumm The Astronomy Bum
Orion Atlas 10 (10" Newt on an equatorial mount)
Celestron 15x70 SkyMaster Binocs
Coronado Ha PST
President, Charlottesville Astronomical Society
IOTA member
38° 10' 57"N, 78° 23' 09"W
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Erix
Toad Lily
Reged: 12/25/04
Posts: 22538
Loc: Ohio, USA
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Happy Birthday, Richard!
--------------------
Erika
Automatic doors make me feel like a Jedi. 
Zhumell 16", 10" LX200 Classic,Orion ED80, ETX70-AT, DS Maxscope 60mm
My CN Gallery * 2007 July - tracking NOAA10963
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Ford Prefect
super member
Reged: 09/25/05
Posts: 196
Loc: Italy
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Quote:
It seems to me that a 20mm eyepiece in the PST is too long focal lenght and not too much fine details will be seen with this magnification (20X). With my replaced "golden coated" PST I can use the TV Nagler zoom 3-6 at 5mm position (80X) and even sometimes at 4mm (100X).
Yes, you are right, but I had only few time to try my PST since it was cloudy. I was experimenting with different EPs, but the seeing was not good.
So, the image in the 20mm was steady enough and very crisp (much more crisp and detailed than I remember it was before the PST was repaired).
I tried a GSO Plossl 15mm but there is a glare in the EP (the 20mm Burgess has not this glare, it seems a better quality EP).
I tried also the Planetary 7mm but when I put it into the focuser the seeing was not god and the clouds where rolling over, so I had no way and no time to go up with magnification.
I remember I was disappointed using high magnification before the reparation, but now the image seems crisper and more detailed, so I had to try.
Just waiting for the right conditions.
Meanwhile, the guy who sold me his PST did not imagine it had some problems, while the increasing in quality after it was fixed is just great.
I also heard other people in Italy that say they tried different PSTs and found one working better than another one. I guess they tried a "rusty" one.
I think the problem of "rust" is not enough known here.
--------------------
Claudio from Rome
Celestron C5 on Giro-Mini Mount
StellarVue F50,10x50 and 15x80 binoculars
Coronado PST
"Los que van con prisa, nunca ven el cielo"
"Considerate la vostra semenza:
fatti non foste a viver come bruti,
ma per seguir virtute e canoscenza"
Dante, Inf. XXVI, 118-120
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EmielVeldhuis
Carpal Tunnel
Reged: 01/29/07
Posts: 2524
Loc: Zwolle, the Netherlands
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or maybe it's astigmatism? earlier in this topic I did some comparising of two different PST's, blue and gold objective lenses. Both units had not the rustproblem, but this was a prism problem.
--------------------
8" LX10 SCT,Skywatcher NEQ6pro,Vixen SP,Skywatcher 150/1200mm refractor, Coronado PST's: Gold and Blue,Lunt LS60T-HA and CaK b/600, b/wToUcamSC3RAWmod.and a DMK 31AU03as.
http://astrosurf.com/obsolar/colabora/colaboradores/veldhuis.html
www.solarlive.nu
Experience our nearest GV2 star, live at SolarLive!
www.solarlive.nu
Edited by EmielVeldhuis (02/05/08 08:24 AM)
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darkstar528
Postmaster
Reged: 03/06/07
Posts: 7455
Loc: Hodgenville, Kentucky, USA
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Can I bud in a sec, how do you determine the magnification, mine for example: PST w/Barlow 2x and Vixen 8-24, assume I'm at the 8mm setting, what would my magnification be and what is the formula?..Thank you in advance?...
--------------------
Blue skies,
Stephen "Darkstar" Ames
PST(#96038), VIXEN 8-24mm,CEMAX 2x Barlow, Thousand Oaks White Light Filter and a Meade Elec EP
CFI, CFII, MEI, working on EIEIO!
BAA Member
My solar site:
http://seemysunspot.com
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Dubboy
Carpal Tunnel
Reged: 07/05/05
Posts: 2277
Loc: Western Kentucky
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Quote:
Can I bud in a sec, how do you determine the magnification, mine for example: PST w/Barlow 2x and Vixen 8-24, assume I'm at the 8mm setting, what would my magnification be and what is the formula?..Thank you in advance?...
Hi Stephen,
I believe the focal length of the PST is 400mm so...
400mm/8mm ep = 50x...with 2x barlow= 100x
Does that sound right to you?
--------------------
Don
"Don't worry about what telescope you own, or its quality. Just get out under the night sky and enjoy God's wondrous universe" Thomas Back.
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