Bernard, Although I can't comment on using the f/3.3 reducer on a Petzval 66, I can make some comments about using it at very short focal lengths.... the...
Thought I'd jump in here. (BTW Bruce, I found that very instructive.) I don't have the Petzval but the SD which I know is quite different regarding field...
Hi guys, Here is my first attempt at imaging M42. I used an H-alpha filter. The second image has false colour added for interest. I plan to eventually...
Thanks Larry/Bruce. You confirmed my fears! I'll probably not purchase an F3.3. I guess my C8 and WO66 with or without the F6.3 will provide me with enough...
Bernard, As you reduce the focal ratio, the depth of focus shrinks rapidly. This can result in you needing to focus the system to within microns. The exact...
... rush ... I strongly agree with your decision to return the lens to WO for inspection/collimation by their technicians. I have been through a similar...
Hi, I was wondering which reducer would work best for my combination? I called WO and they recommended me to look for a TeleVue reducer (the person was not...
Hi David I can answer some of your questions, hopefully others can oblige with how well the combination of scope / reducer works. There is no difference...
Hi Bruce, thanks for the clarifications. Yes the DSI can screw directly into a T2 thread. What would be the ideal distance between FR and CCD chip (if any)?...
William Optics Telescope Discussion GroupHas anyone on the list ordered the Megrez 102 ED? I was curious what shipping/taxes would be on this package and how...
Shot this with an MX716 through the ZS 66 SD. I really tried to get the core shape using PixInsight's HDRWavelets on the luminance. Details and picture at ...
David, There certainly is an optimal spacing with SCT's - there's a detailed discussion of it on Ted Agos' site. However, I have absolutely no idea what it...
William, Down the road I may give collimating the scope a try. Having just bought it I would rather WO get it right and hope it survives the trip back to me...
Does the base of the 66mm apochromat fit into any industry-standard dovetail system, such as Vixen or Losmandy? (I know it has 1/4" -20tpi screw threads but...
I bought an adapter from Orion for my WO 80mm. Don't know if this will work on your application, but works on Orion mounts. http://tinyurl.com/2qbvjg Bob ... ...
Hello, I am new to the group and waiting for my Megrez 90mm to arrive on Wednesday. I ordered it with a RDF and vixen plate. I have a Vixen SXD mount...
how exciting, i'm teetering on the edge of ordering either the M90 or the M102 myself. looking forward to hearing about how yours works for you. -- michael...
Hello, Welcome to the group. You may need a 2 inch photo extender to reach focus with the ST2000XCM. I use the ST2K with CFW10,and it will not focus without...
Thanks for mentioning that. I do have the 2 inch photo extender. ... focus with the ST2000XCM. I use the ST2K with CFW10,and it will not focus without the...
Hi all, Is it possible to remove the 1/4" support bracket from the tube of the Megrez 90? I feel I can't get a good position for the guide scope (Zenithstar...
Lars, to date the bracket has to stay. You might be able to use only 1 ring, or make extra holes in your bracket. If you want, pm me and I might be able to...
Mike, I too am curious on shipping/taxes and maybe some sort of customs duty. You might email WO directly for information. If I hear any news I'll post on...
Hi Folks, Shipping fee will be calculated from USA location and we only charge the regular fee to save you money for any duty fee maybe involve, but product...
Just as a data point, I've bought two scopes so far from WO that were shipped from Taiwan and in neither case did I have to pay any kind of duties (I live near...
FLT110 CF F/7 is very limited edition – 3pcs only!!! Retail price = $2,798.00 incl. mounting rings. William decided to use an "ultra thin" aluminum tube...
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