I'm currently considering either: A 7.5mm Ultrascopic, 7mm Ortho or (if eye relief is going to be a major issue with the others) a 7mm Lanthanum.
Your thoughts please!

Posted 25 June 2004 - 05:02 AM
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Posted 28 June 2004 - 07:40 AM
I have a Lathanum 15 mm and a LV zoom. They outperform my Plössl easily in sharpness i can tell you that! Ok ,my Plössls are of chinese quality and their are probably better Plössls on the market then those but i consider the LV's as a great breed for a reasonable price!Televue radians, panoptics or nagles are too expensive for me!
Posted 28 June 2004 - 07:46 AM
Well Dave, you are right, but a little harsh imho. And our point was that they are not the sharpes eyepieces but are very comfortable to use for someone who needs or likes long eye relief.
Posted 28 June 2004 - 10:01 AM
Well Dave, you are right, but a little harsh imho. And our point was that they are not the sharpes eyepieces but are very comfortable to use for someone who needs or likes long eye relief.
A little harsh? Should I sugar-coat the facts next time?
Dave Mitsky
Posted 28 June 2004 - 10:12 AM
Posted 28 June 2004 - 12:33 PM
Dave, with all due respect, I don't think it is necessary to sugar-coat the facts, but the tone of your response reads like you are slapping down the poster, not the eyepiece.A little harsh? Should I sugar-coat the facts next time?
Dave Mitsky
Posted 28 June 2004 - 12:37 PM
I'm after a decent high power ep for plantary use with my 90mm Skywatcher f10 refractor - something around 7.5mm fl. I currently use a standard 7.5mm Plossl and I'm looking for something better. I've heard that many folks favour orthos and also the Orion Ultrascopics for planetary stuff. My concern is eye relief: I can just about cope with the 7.5mm Plossl (I don't wear spectacles for observing) but would an ortho/Ultrascopic have even less eye relief?
I'm currently considering either: A 7.5mm Ultrascopic, 7mm Ortho or (if eye relief is going to be a major issue with the others) a 7mm Lanthanum.
Your thoughts please!
Posted 28 June 2004 - 01:47 PM
Yep, probably a good decision!!I have a Lathanum 15 mm and a LV zoom. They outperform my Plössl easily in sharpness i can tell you that! Ok ,my Plössls are of chinese quality and their are probably better Plössls on the market then those but i consider the LV's as a great breed for a reasonable price!Televue radians, panoptics or nagles are too expensive for me!
My 9mm is sharper than my Orion Sirius plossl's and has less internal reflections and flaring. Its way sharper than my Antare's W70's which are fuzzy by comparison. The 9mm LV gives about 170x in my Starmax 127, its given me great views of the moon and Jupiter over the last couple of months. I just haven't noticed the colour issues people complain about. The only thing they really lack is FOV especially in the shorter fl's
For the price its a really nice ep and very easy to use. For some reson people seem to have a downer on the LV line on this board. I intend to get an 8mm Radian for 200x, but I'll probably get a couple more LV's for my less used fl's. I observe sometimes with my glasses on, but like 15mm or more er anyhow.
Posted 28 June 2004 - 04:55 PM
Posted 29 June 2004 - 03:34 PM
Are you sure that a lathanum is not as sharp as a Plössl, i own a 15 mm LV and the zoom, i can tell you that the lv's are sharper then my Plössls, especially to the edge.The only thing i noticed that the LV's are a bit dimmer expecially if the are used with a barlow but otherwise i can not see any drawbacks of the LV branch...Eye relief is a matter of personal preference (if you don't like the eye relief of a 7.5mm plossl it's unlikely you will like that of a 7mm ortho) ; as for sharpness, the orthos (and good plossls) are sharper than lanthanums. But looking through an ortho more than 5 minutes is a torture for me, I can spend 20 minutes looking through a lanthanum with no fatigue. As you already have a 7mm ultra, you might want a 5-6mm lanthanum. The 4mm is not that good.
Posted 29 June 2004 - 06:50 PM
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