Popular Post Tweedledee Posted April 20, 2018 Popular Post Share Posted April 20, 2018 Someone once suggested that a barlow lens would be a very effective way to increase my range of eyepieces ?... Bottletopburly, Smithysteve, tuckstar and 3 others 4 1 1 Link to comment Share on other sites More sharing options...
+RonC Posted April 20, 2018 Share Posted April 20, 2018 They were wrong!!?? Tweedledee 1 Link to comment Share on other sites More sharing options...
+Graham Posted April 20, 2018 Share Posted April 20, 2018 Me thinks you are going to need a stronger table ? Tweedledee 1 Link to comment Share on other sites More sharing options...
+Bino-viewer Posted April 20, 2018 Share Posted April 20, 2018 Great collection Pete. I actually thought the new Rodenstock was a bit bigger than that although the ES 30/100 makes everything else look small i guess. I'll put you on the spot..... Do you have a favourite ? (i'm guessing though that some of them are so new, that you've not had time to properly evaluate them yet....) Tweedledee 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted April 21, 2018 Author Share Posted April 21, 2018 21 hours ago, Bino-viewer said: Great collection Pete. I actually thought the new Rodenstock was a bit bigger than that although the ES 30/100 makes everything else look small i guess. I'll put you on the spot..... Do you have a favourite ? (i'm guessing though that some of them are so new, that you've not had time to properly evaluate them yet....) I have 8 main eyepieces as follows... ES 100 degree series 30mm 25mm ES 92 degree series 12mm ES 120 degree series 9mm TV Ethos 100 degree 17mm Speers WALER Zoom 85 degree 8.5 - 12mm Myriad 110 degree 5mm Rodenstock Giant 70 degree 40mm I really like them all because they always provide the wow factor and show some extreme field of view with great clarity. If you read about Al Naglers Majesty Factor here... http://www.televue.com/engine/TV3b_page.asp?return=Advice&id=114 you will understand what I'm trying to achieve with these types of eyepieces. Basically I'm after that Imax cinema view instead of the iPhone view. My favourites to use by a small margin are probably the ES 25mm and Ethos 17mm because they give the best wow factor with a nice easy view. The ES 30mm is just too much of a monster and needs a big scope. Though it is nice to have what is just about the most extreme eyepiece ever made. The 9mm 120 has a stupendously wide apparent FOV. Partly due to this extreme field, the optical physics means it must have shorter eye relief than the others and is therefore not the most relaxing eyepiece to look through. Though with more practice I'm now able to use it better and get the most out of it. I suspect that when I finally get round to trying it, the ES 92 degree 12mm will impress due to its long eye relief and easy view. All these eyepieces pose their own problems in that they are big and heavy and I'm always worried about the greater chance of dropping them in the dark with expensive consequences. Those eight eyepieces contain no less than 70, usually large, elements of glass! They involve more effort to carry around and some won't even fit in your pocket, so I'm investing in a big case with custom cnc cut foam from this place... https://www.trifibre.co.uk Why couldn't I just be satisfied with a nice little set of plossls? ? +Bino-viewer and Smithysteve 2 Link to comment Share on other sites More sharing options...
Tweedledee Posted April 21, 2018 Author Share Posted April 21, 2018 22 hours ago, Bino-viewer said: Great collection Pete. I actually thought the new Rodenstock was a bit bigger than that although the ES 30/100 makes everything else look small i guess. Thanks Rob. The Rodenstock is the second fattest, second heaviest and feels like the densest of the lot. It weighs 1.45kg whereas the 30mm is 2.4kg!! Apparently the Rodenstock is a modified Erfle II design with very high grade military optics and contains a meniscus lens over 3" diameter somewhere in the middle of it! Link to comment Share on other sites More sharing options...
Doc Posted April 22, 2018 Share Posted April 22, 2018 It's a wonderful collection Pete. What's next on the shopping list? Tweedledee 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted April 22, 2018 Author Share Posted April 22, 2018 1 hour ago, Doc said: It's a wonderful collection Pete. What's next on the shopping list? Cheers Mick, I'm pretty chuffed with those big eyepieces. I think I have most of the angles covered now with some good quality eyepieces. Still got my eye on some large classic eps like the Leitz 30mm 88 degree, of which there are 6 variations, and a Jaegers 38mm tank eyepiece. I'm still looking for an opportunity to get my hands on the latest, or older, versions of the image intensified eyepieces that are causing a stir among US astronomers. I've read some fantastic reviews on this technology, but sadly they're illegal in the UK. Even Televue are now producing adapters to allow PVS-14 gen3 night vision technology to attach onto their big eyepieces, but it is currently not allowed here. If you get word that I'm in jail, you'll know why. ? Smithysteve 1 Link to comment Share on other sites More sharing options...
Smithysteve Posted April 26, 2018 Share Posted April 26, 2018 I think you need at least an 8 piece turret, and a wheelbarrow fitted out with racks for the others...? Tweedledee 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted April 26, 2018 Author Share Posted April 26, 2018 13 minutes ago, Smithysteve said: I think you need at least an 8 piece turret, and a wheelbarrow fitted out with racks for the others...? A 2" eight piece turret with one opening at 3" might just do it. Oh, and a 20 kg counterweight! ? tuckstar 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now