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22582
Re: DDG Focuser Battery Joe,  Be advised that the battery could be called; FR44, LR44,  PR44, AG13, or A76.  They are all the same battery. Stan On Thursday, April 17, 2014 5:53
Stanley Schlieper
6:15 AM
#22582
 
22581
Re: DDG Focuser Battery Thanks Tim. The problem is I don't have a battery that I can take in. I'm going to go to a battery store today to get a couple. Thanks. Joe
kc5dfp
5:53 AM
#22581
 
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Re: DDG Focuser Battery Std battery you can buy anywhere - just take it in with you if you want to check it. Sometimes the numbers vary. Timm
timm_bottoni
Apr 16
#22580
 
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22579
Re: DDG Focuser Battery Thank you, Stan. R, Joe
kc5dfp
Apr 16
#22579
 
22578
Re: DDG Focuser Battery Joe, It uses an FR44 battery. Stan
stanschlieper
Apr 16
#22578
 
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Re: DDG Focuser Battery Joe, It uses an FR44 battery Stan
stanschlieper
Apr 16
#22577
 
22576
DDG Focuser Battery Hello All. Need some simple help... what type of battery does the DDG focuser need? Thanks. Joe
kc5dfp
Apr 16
#22576
 
22575
William Optics - SCT 10:1 focuser question Our club owns theMeade 14" Richley Chretien LX200R and we are looking for a focuser that can support the the weight of a Canon Rebel, the SBig ..etc The WO SCT
photiost
Mar 24
#22575
 
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Re: Using a flip mirror I posted this question but didn't get an answer, it was perhaps rather too specific. Anyway I tried out the Megrez 120 with the flip mirror and yes it does
dancingononeleg
Mar 19
#22574
 
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New WO-STAR 71 - pics on Facebook Hi all, If anyone is interested in the new WO-STAR 71 scope there are pictures posted on Facebook https://www.facebook.com/pages/William-Optics/464754920382
timm_bottoni
Mar 17
#22573
 
22572
Re: GTF81 - removing built-in flattener Hi, It won't work on the GTF81, like it can on the GTF102 because it doesn't have that section to remove. Sorry, Timm
timm_bottoni
Mar 10
#22572
 
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Re: GTF81 - removing built-in flattener Dan, I sent you an email response from WO with an attachment of how to remove the internal flattener for the GTF 102 model. I'm sure it is the same process.
salmanazam69
Mar 9
#22571
 
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GTF81 - removing built-in flattener Okay - I am looking at switching cameras from my KAF-8300-based camera to a smaller Sony-based camera and want to be able to use a focal reducer at the
dan_kordella
Mar 9
#22570
 
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Re: GTF81 focal length Hi Sal, Sent you an email reply Timm
timm_bottoni
Mar 5
#22569
 
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Re: GTF81 focal length Hey Timm. Sent you an email. -Sal
salmanazam69
Mar 5
#22568
 
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22567
Re: GTF81 focal length Hi Sal, I don't think the F/7.7 is an issue for imaging unless you have a mount that can't handle the size and focal length. I'm actually thinking of selling
timm_bottoni
Mar 5
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Re: GTF81 focal length Dan, That is a really good image. Thanks for sharing it. I am leaning more towards the GTF model now. -Sal
salmanazam69
Mar 4
#22566
 
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Re: GTF81 focal length I use the GTF81 with an Atik 383l camera. What really cinched it for me was that it was becoming difficult to fit all the components of my optical train using
dan_kordella
Mar 4
#22565
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22564
Re: GTF81 focal length Hi Timm, Yes, I did read your review and others like it. I am strongly considering this model since I already own the WO 80mm Megrez Triplet, so I guess I
salmanazam69
Mar 3
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Re: GTF81 focal length Hi Sal, I posted my review of the GTF102 last year. It's very good for astroimaging but I have been out only once all Winter here in Chicago. I wish I could
timm_bottoni
Mar 3
#22563
 
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Re: GTF81 focal length I am considering getting the GTF102 for pure astroimaging. I am stuck between getting this model and the GT102 but I very much like the idea of a built in
salmanazam69
Mar 3
#22562
 
22561
Re: WO 68 Field Flattener one answer and one question Hello, It seems that you need this document http://www.williamoptics.com/accessories/images/TMBflattener_ChiptoLens.jpg [cid:image001.jpg@01CF3709.679B2D50] I
    christian_hennes
    Mar 3
    #22561
    This message has attachments
    22560
    Re: gt81 and flattener It seems that the 0.8X VIII flattener is no longer sold by WO. I know that the TV TRF-2008 flattener seems to work with the old-version Megrez90, but its quite
    ejoliveira1970
    Mar 3
    #22560
     
    22559
    gt81 and flattener Hi I have the gt81 and got the matched flattener reducer. Try as I might go could not get a flat field. I got some digital calipers and the distance seems to
    e3bdeef4dc8c0fc72666a08dd6507672
    Mar 3
    #22559
     
    22558
    Re: Flattener 88 Hi I use the Wiliams 0.8x Reducer /flattener V.111 with my Megrez 90 ( the one without the DDG) Robert From: WILLIAM-OPTICS@yahoogroups.com
    John Robert Adamson
    Mar 3
    #22558
     
    22557
    Flattener 88 Hi everybody, Will the WO flattener 88 work with an old version Megrez 90 (the one without digital gauge focuser)? Eduardo
    Eduardo Oliveira
    Mar 3
    #22557
     
    22556
    Re: FLT 110, P-Flat IV, SBIG 8300c Thanks Ivor, great explanation, much appreciated! Looks like I can get a 35mm long 42mm thread spacer here in Melbourne Australia.
    andysastropix
    Feb 26
    #22556
     
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    22554
    Re: FLT 110, P-Flat IV, SBIG 8300c Hi I am using the same set up with a ST8300m and Starlight Express filter wheel but have the FLT123 scope. I agree Ivor’s approach. I needed to do some minor
    John Robert Adamson
    Feb 26
    #22554
     
    22553
    Re: FLT 110, P-Flat IV, SBIG 8300c Hi, Yes you definitely need to add a spacer. WO have made the whole setup very confusing which is a shame as it is a great product; it took me quite a while to
    runningivor
    Feb 26
    #22553
     
    22552
    Andrew Campbell
    Feb 25
    #22552
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