LinkBack URL
About LinkBacksHi,
Ok, I confess there's something I don't understand about WA lenses. For example, if I look through one of my scopes with a standard 5mm lens at (e.g.) Jupiter and then at it with a 5mm WA or SWA lens, would it be the same magnification with both lenses - would Jupiter be the same size????
Many Thanks
Welcome to the Astronomy Forums | Telescope Forums & Reviews | Astronomy Community.. Please login below or register now.
Results 1 to 3 of 3
Thread: Wide Angle Lenses
- 12-04-2011, 10:43 PM #1
HYPER GIANT
Achievements:
- Join Date
- Aug 2010
- Location
- Windsor, Ontario, Canada
- Posts
- 4,057
- Points
- 36,173
- Level
- 100
- Thanks
- 754
- Thanked 1,184x 952 Posts
Wide Angle Lenses
Telescopes: Celestron Omni XLT 120, Explore Scientific AR102, Orion ST80 Refractors; 8" Skywatcher Dob; Orion Apex 102 Mak; Coronado PST. EP's: ES 4.7, 6.7, 11, 18 and 30mm 82° EPs; Baader 24mm 68°; Luminos 15mm 82°; Meade 8-24mm Zoom. Other: CG4+16" Orion Pier Extension; Celestron 20x80 binos etc;
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
Bortle 8
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
The Bible tells us God created the Universe; Science tells us how He did it; And through my telescopes I marvel at His handiwork
- 12-04-2011, 10:51 PM #2
HYPER GIANT
Achievements:
- Join Date
- Sep 2011
- Location
- Brea, CA
- Posts
- 2,483
- Points
- 24,468
- Level
- 100
- Thanks
- 3,833
- Thanked 3,285x 1,517 Posts
Yes. But the actual FOV would be larger. With a 100x a 40 degree plossl would have a 0.4 degree (40/100) actual FOV. A 70 degree super plossl would have a 0.7 degree (70/100) actual FOV.
-
The Following User Says Thank You to kencrowder For This Useful Post:
AbbN (12-04-2011)
- 12-04-2011, 11:00 PM #3
Moderator
Achievements:
- Join Date
- Jan 2009
- Location
- virginia .usa
- Posts
- 7,913
- Points
- 41,419
- Level
- 100
- Thanks
- 2,009
- Thanked 1,963x 1,528 Posts
The planet would be the same size but the field of view would be wider ..Kind of like looking through one of your hands making a circle with your index finger and thumb versus a circle made with both of your hands using both index fingers and both thumbs ...Sames size but bigger pic. That is why plossl EP's are great for planetry stuff ..And wide angle EPS are great for DSO stuff.
16in Night sky
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
F4.5 , 90mm refractor 500mm FL , 7in
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
classic Big-mac , Meade eye pieces with a few odd balls thrown in ...
If you cant stand behind the american soldier ,
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
Please stand in front of one ...
-
The Following User Says Thank You to roverich For This Useful Post:
AbbN (12-04-2011)
Reply With QuoteSimilar Threads
-
Wide angle or plossl?
By stonecold in forum Telescope Eyepieces ForumReplies: 8Last Post: 05-28-2011, 01:26 PM -
wide angle eyepiece
By Sunnycharlie in forum Astronomy Beginners ForumReplies: 7Last Post: 03-05-2010, 08:13 PM -
Wide angle EP ....
By outdoorsfellar in forum Dobsonian Telescopes ForumReplies: 2Last Post: 02-19-2010, 10:01 PM -
Wide angle and FOV
By brucegooglegroups in forum Amateur Astronomy ForumReplies: 12Last Post: 10-13-2006, 12:53 PM -
Wide angle lenses
By Vincent Waciuk in forum Amateur Astronomy ForumReplies: 15Last Post: 06-20-2005, 07:05 AM
