Orion xx14g Dob CPC 1100 w/Skywatcher 80ED piggybacked Coronado PST TMB 92L refractor AT Voyager mount Nexstar 6/8 mount Denk Big Easy binoviewers Oodles of eyepieces and other optical gadgets Past scopes Meade 8" reflector and 8" SCT
APM 105/650 Travelling Visual Observer
Blog: Astronomy & Living by Hernando
Quote:Two inch eyepieces are generally north of about 24mm. The gap in your lineup would be well filled by something in the 10-12mm range. The Explore Scientific 11mm 82 degree eyepiece is a sweet spot for many, well regarded and currently on sale if you can find one in stock. Or if you want to go a little richer take a look at the 10mm Delos from Televue.
Quote:Interested in astrophotography too? Then consider a Baader Hyperion 8-24mm zoom, it adapts to the camera quite well:Baader Hyperion 8-24mm zoom mated to a Canon DSLR D1000Afocal shots are also my favorite for Moon shots using the 8mm Hyperion zoom setting and a WO66mm petzval refractor, like below, biggest Supermoon in 18 years when it was taken.Best,
Quote:Ponz,Congratulations on your purchase! The Nagler 3-6 is a great eyepiece for a short refractor. I think that your scope is 900mm focal length and in that case the Nagler zoom is very high power. If you increase power too much, you will find the view becomes very dim and unsteady.Short focal length (high magnification) eyepieces are all 1.25" because the light cone entering the eyepiece is small. As you go to longer focal length/lower power eyepieces the field of view has to be increased to 2" or become narrower. So 2" eyepieces become the norm as you increase past about 20mm.I won't make any specific recommendations, but I think you should consider something around 7-8mm for a high power eyepiece, and around 20mm for medium power.What do you think of the eyepieces that came with the scope? Are they comfortable to use? That will help others guide you on what you might like.Hermie
Quote: Thanks Hermie - Well, I've got a 5 and 20 that came with the scope, but the jury is still out regarding their quality....
Hernando - I've been reading Baader zoom reviews. They seem, overall, pretty good. Can you direct me to where I might locate an adapter for my camera? I'll be shooting a Sony a900 which is a Minolta mount.
Thanks - Ponz
Quote: For me, I'm happy with about 70 degrees AFOV but other people love wide 82 or 100 degree views. I need at least 15mm eye relief because I wear glasses for observing, but many people are happy with much less.
Quote: I was focused on a bird atop a tall tree two houses down and couldn't believe the light loss from the stock 20mm to the stock 5mm. Do the more expensive eyepieces exhibit the same light loss at shorter focal lengths?
You know you are there when you start thinking in terms of EXIT PUPIL rather than Magnification..
Quote:Just to warn you (and setting expectation accordingly) ... EP projection my give you usable results for bright objects like the moon and some of the planets, but you're going to be banging you head when it comes to DSO's. Even something bright like M13 takes hours of exposure time at prime with a good DSLR connected via t-ring, or a CCD.
Quote:Quote: I was focused on a bird atop a tall tree two houses down and couldn't believe the light loss from the stock 20mm to the stock 5mm. Do the more expensive eyepieces exhibit the same light loss at shorter focal lengths? Yes, all eyepieces will exhibit the light loss, With magnification, the brightness curve tends to drop off in any objects that you see because the concentrated light of the image in the low power eyepiece is now spread out in a larger area in the magnified image that you are viewing.Clear Skies!
B Cuddihee 1968 Jason Empire 60X700mm refractor 1977 Jason Empire 313 discoveror EQ Celestron Nexstar8SE "The Bumblebee", with Feathertouch Microfocuser, and Celestron CPC Heavy Duty Tripod. Stellarvue 50mm "Sparrowhawk" finder Denk bino's with Power x switch. Pair of Edmund 28 plossls. Pair of Edmund 28 RKE'S Pair of 24mm Brandons. Pair of Smart Astronomy 19 EF's. Pair of 18mm Celestron Ultimas