Tom Karpf (tkarpf) Vice President, Astronomical Society of Greater Hartford www.asgh.org
Selsi 60mm f/13 Lunt 35mm Solar Scope Stellarvue SVR70ED
Astronomy Technologies AT6RC Home-built Dobsonian with home-made mirror -
8" f/6.8 Unistar Deluxe on a surveyor's tripod
Orion XT12i with Swayze-refigured primary/Protostar secondary
Televue NP101 refractor
William Optics Megrez 90 refractor
Universal Astronomics Deluxe Mounts
16" AstroSky F4.5 C/W Skycommander, TEC 140, 6" F8 Edmund, 120 Skywatcher F5 SW EQ6 AP SPL 5mm Carl Zeiss Jena .965 6,10,12.5,16,25, Pentax 3.8mm XP, 7mm SMC, 7XW, 10XW TMB SMC 8mm,TMB Planetary 2.5,6, TV Smoothie NJ's Plossls, 14 Delos, Nagler 20T2, WO 4,28 UWAN, Orion Zoom 7.5-22.5, BGO 9 Binoculars Pentax PCF 7x50, SPACE, A PORTRAIT OF PERFECTION! Tony M
Quote:I've been wondering lately why someone would deliberately LOOK for the edge of the field of view in an eyepiece.It seems to me like one of the selling points of eyepieces with 82*, 100*, 110* and 120* apparent fields of views is that you won't normally see the edge of the field of view. If you can't SEE (or don't notice) the edge of the field, then you have more of a 'spacewalk' feel while looking through the scope and the eyepiece just sort of gets out of the way from being between you and the stars. With the 100*+ fields of view, you should be able to look around a bit without noticing the field of view.What do you think? Am I completely off base?
Quote:I've been wondering lately why someone would deliberately LOOK for the edge of the field of view in an eyepiece.
Quote:It seems to me like one of the selling points of eyepieces with 82*, 100*, 110* and 120* apparent fields of views is that you won't normally see the edge of the field of view.
Quote:In my ES82 and 100 I don't see the field stop when looking straght BUT I see the ''ring'' that surrounds the eye lens.
We mostly come out at night... mostly.
GSO Z8 Degree Circle & Digital Level
Celestron 4"(102mm) SLT 660mm f/6.47
2" 30mm GSO WideView
9mm GSO Plossl
ES 82's : 4.7mm, 8.8mm, 11mm, 18mm
BGO's 5mm, 6mm, 9mm
2" 2X ED Astronomics Barlow & GSO 1.25" 2x Shorty
8-24 Baader Zoom III
Baader M&SG, Semi-Apo
Quote:Becase often, there are stars there?Because sometimes there are secondary objects there?I look at EVERYTHING in the field. Often, there will be doubles or even entire clusters at the edge of the field of an eyepeice when there is a target at the center of the field.I don't look AT the field stop, but a great many times, I look at the field right NEXT to the field stop.I remember once in my Televue 101 witha 31mm Nagler seeing 6 different NGC objects in the SAME field. Of course to do this, some of the objects were pushed RIGHT to the edge of the field. You could not see the object without seeing the field stop.So, what's the problem with that?
“I am the only person to ever ace a 1951 USAF resolution test. My 'to observe' list says 'done'. I do not use charts or atlases when I starhop; men do not use maps. One of my sketches won an SBIG deep sky imaging contest. I am the life of star parties I have never attended. I never say anything looks like a faint fuzzy - not even a faint fuzzy. Pilots aim green laser pointers at me. Don Pensack proofreads my CN forum posts.” - The Most Interesting Astronomer in the Universe