Posts Made By: Larry Seguin

Hi Floyd,
Was looking at your Planetary ep comparison review again, and noticed that you were going to compare a 6mm TMB to a 6mm Radian. Wondering if you ever got the chance to do that comparison, and what you thought of those two?
Larry

I'm using Elite plossls in my BV's to save a little cash, and don't mind the views at all. I've considered upgrading the plossls to Televues, but seem to remember reading somewhere that they tend to vignette when barlowed. Does anyone else here recall that, or experience that as being true with their BV's?

Question: Has anyone here done a comparison of available O-III filters, such as Lumicon, Thousand Oaks, Orion, etc? I'm wondering if they are all fairly comparable, or if some one has noticed a significant difference between brands. I had a chance to compare Orion's and Lumicon's some years ago, but would like to know if anyone sees anything significantly different between the major offerings. Thanks!

Do any of the folks here recall Celestron making an Ultima barlow that was threaded for filters? I SEEM to recall seeing one several years back. If such a critter there be, I'd find it very useful with my binoviewer setup, for filtering two eyepieces with one filter. Thanks for any memories you may be able to offer!

I've seen questions on this site and on others concerning "trading up" in the the world of eyepieces. Some maintain that you should simply buy the best, you'll keep them for life, and they'll be useful in any scope you ever own. Others advise that they way to learn is to try things out, so buy some of the less expensive ones first, learn to use them effectively, and trade up when you're ready. Still others say that if you stick with slow focal ration instruments you'll never need the more expensive designs. I haven't heard this line of thinking yet, so here goes....
If you're wealthy and single, buy what you want and give it no further thought. End of story there. If money is an object, or you have a CFO residing with you, buy lots of cheap eyepieces whenever you have the chance. This way you'll get to try out the inexpensive versions, learning as you go. Once you've accumulated enough of these cheapies, you can sell the whole lot of them on one of the astro-sites, get what you've REALLY wanted all along, and still tell the CFO "But honey, I'm not spending ANYTHING, I'm just selling stuff I already have". Sounds like the best of all possible worlds to me, and don't tell the wife I said so! ;>)

I just found out that the service providing our email account has changed our email address. I'll need to update my information here on Astromart. Does anyone here know whether, when I have done this, I will still have my ratings intact? I seem to recall that starting over like this once sent someone's ratings here to zero, and would like to avoid this happening if at all possible. Thanks for any insight you can provide!

Jason--I've tested the Tak 5LE against a U.O. 5 ortho, and Pentax 5.2 XL. All the eypieces were tested in a 12.5" f/6 reflector, and a 4" f/10 achromat. Seemed to me that the U.O. Ortho was the sharpest of the lot, but the eye relief and field of view made me go with the 5 Le. Haven't really regretted the decision, I find that the extra time I can spend just looking without nudging the scope makes up for the lost sharpness. I did have a 6mm Radian for a while but I thought that it just didn't have the sharpness and contrast of the others. One DOES hear a lot of back and forth on the Radians, must be that elements of the viewing experience with that particular ocular will just turn some on and some off. Best of skies to you. Larry Seguin.

Justin--Peaceful? Try Music For Airports, vol. 1 or 2, by Brian Eno. Don't be put off by the title or the artist, it's very tranquil. Larry Seguin.

Anthony--If you find a producer for such an adapter, let me know, I'd take one. Larry Seguin

Mark--Here's why mine went up for sale: On my 12.5" f/6 reflector there is a real sweet spot for viewing right at the 7mm range. I bought all the premium eyepieces available, plus some inexpensive high performers (various brands of orthoscopics)in that 7mm range. My 7 Nagler came in fourth place for on axis sharpness, contrast, and light throughput. Result: 7mm Nagler for sale. Larry Seguin.