| Info | Votes | Messages | More Stats |
 Up One Level
|
 | ||||
Subject: Re: vote by xxx.xxx.80.247 By: Anonymous (xxx.xxx.105.56) Date: 06/22/2002 08:47:32 am PST After reading the May 9, 2001 review of TeleVue's Everbrite 2" Diagonal (see excerpt below), I spent considerable time looking for a Takahashi 2" SCT adapter. Anacortes sells an extensive line of Takahashi's accessories and adapters, but when I asked rep for a Takahashi SCT adapter, he said only Televue (ACC-0003) and Astro-Physics make 2" SCT adapter (ADASCT). Does anyone know for sure if Takahashi makes a 2" SCT adapter, or have the part number? Possibly the reviewer just make an error... >...one word of warning. The SCT adapter made for it by TeleVue is quite poor. The diagonal flops around even when fully tightened, and the thread around the one retaining screw strips far too easily. I've had to re-tap the hole twice,and replace the screw with a larger one. It can be partly solved by fitting a second screw, but I believe that you're better-off buying Takahashi's 2" adapter. It is extremely well made. I can vouch for it! Subject: Re: vote by Starman By: Anonymous (xxx.xxx.9.96) Date: 11/20/2003 03:33:03 pm PST >I have the relatively unusual position of getting this as a gift. I did not seek to replace my 2" Lumicon High-relectivity diagonal, but I thought I would try it out for comparison purposes. I'm SOOOOO glad I did. The threading in the extension tubes (versus shiny anodizing in the Lumicon), the ulta-flat black in the housing (vs. shiny anodizing in the Lumicon), and the slightly shorter mirror housing extension that allowed the diagonal to actually fir within the fork arms on my SCT, seems to make it a winner. Internal reflections are gone. And the diagonal is closer to the perfect 45 degree angle than the Lumicon was--after careful collimation on a star, the Lumicon seemed to show some astigmatism, but the Televue exhibits none. This is quite an improvement on the Lumicon, which in turn was quite an improvement on the Orion 2" before it. Only two minor complaints keeps this from a perfect rating--the screws that hold this diagonal in hit the lip of the machined retention groove instead of the flat area, so tightening the screws to secure this to the scope forces the diagonal away from the 2" adapter tube (I cured this problem by countersinking slight depressions at these points); and the eyepiece tube is a little too short to allow me to put some filters on the ends of eyepieces like the Meade 14mm and insert the eyepiece all the way (the filter hits the mirror). This is not a problem with all filters, just some, and you can easily fix it by adding a spacer ring to the eyepiece to lift it slightly out of the tube. Other than these 2 very small gripes, the performance is stunning. By those standards, this is a bargain. Recommended. Highly. Reply: Stunning??? I bought the 1-1/4 version and a Celestron stock prism diagonal that it replaced is very close in performance. The everbrite is a tad brighter, but shows more light scatter without the MgF coatings of the prism... The mechanics are better for Nagler eyepieces (big surprise here) and it has the recessed safety notch: but in hindsight, the 200 bucks would be better spent on another quality eyepiece. Based on your review, I'm assuming that the Lumicon version really sucked. Charles Subject: Re: vote by xxx.xxx.80.247 By: Anonymous (xxx.xxx.252.115) In Reply to: Anonymous (xxx.xxx.105.56) (Original Message) Date: 12/03/2004 08:49:37 am PST I agree. I too have tried the TV 2" SCT adapter and found it wanting for the same reasons. I got the Astrophysics 2" SCT adapter and it held the 2" Everbrite diagonal very securely with its compression ring. W Yung >After reading the May 9, 2001 review of TeleVue's Everbrite 2" Diagonal (see excerpt below), I spent considerable time looking for a Takahashi 2" SCT adapter. Anacortes sells an extensive line of Takahashi's accessories and adapters, but when I asked rep for a Takahashi SCT adapter, he said only Televue (ACC-0003) and Astro-Physics make 2" SCT adapter (ADASCT). Does anyone know for sure if Takahashi makes a 2" SCT adapter, or have the part number? Possibly the reviewer just make an error... > >>...one word of warning. The SCT adapter made for it by TeleVue is quite poor. The diagonal flops around even when fully tightened, and the thread around the one retaining screw strips far too easily. I've had to re-tap the hole twice,and replace the screw with a larger one. It can be partly solved by fitting a second screw, but I believe that you're better-off buying Takahashi's 2" adapter. It is extremely well made. I can vouch for it! Page 1 of 1 | ||||||||
