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Larger Scopes May Be On The Way

Started by jkurtz555, 03/22/2006 10:12AM
Posted 03/22/2006 10:12AM | Edited 03/22/2006 10:46AM Opening Post
I was told that the Taiwan/Chinese vendor who has recently introduced the 80ED being shown by Stellarvue/AT and others is testing a 110mm F/6 prototype that it will be showing to a group of dealers in about a month. Hopefully we will start to see something other than the numerous 80mm refractors that seem to be popping up almost weekly.
Posted 03/22/2006 11:27AM #1
>>I was told that the Taiwan/Chinese vendor who has recently introduced the 80ED being shown by Stellarvue/AT and others is testing a 110mm F/6 prototype that it will be showing to a group of dealers in about a month. Hopefully we will start to see something other than the numerous 80mm refractors that seem to be popping up almost weekly.
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Well, here's my thinking, an 110mm F6 ED Doublet is not going to be so cheap and is not going to have the good color correction that the 80mm F7.5 scopes do. A 110mmF6 ED triplett could have good color correction but it would be very expensive... One thing I have learned reading Roland Christen's posts is that when it comes to APOs, there are no short cuts and an 110mm F6 is quite severe so it is going to cost real money.

Jon Isaacs
Posted 03/24/2006 09:14AM #2
There was a larger Sino ED APO made - at 120mm. By several reports it had disappointing correction. I would rate this as an early failed attempt to break out of the 80/100 size. Perhaps later attempts will work out better.