Given the same
While I enjoy my Zhumell 30 mm wide field eyepiece a lot, I notice distinct image aberration (off axis astigmatism or
You already have 30mm and 25mm EPs which gives you 6mm and 5mm exit pupil. Your first priority should be to add a couple EPs to cover 3mm and 2mm exit pupils. I would look for 18-20mm and 10-12mm. This would keep you going until you have a chance to pick better quality EPs.The Happy Parrot wrote: ↑Sat Mar 27, 2021 12:24 pm Thank you both, Kathy and Bigzmey.
So the two-inch diameter allows a wider field of view but won't necessarily make faint objects slightly brighter.
Right now all things astronomy seem scarce and pricey, but keeping my eye pupils open wide for a Meade PWA or ES 68-82 wide eyepiece on the used market.
Interesting suggestion, Craig. I have an
That's exactly what I was curious to know. Thank you, Michael.helicon wrote: ↑Sat Mar 27, 2021 6:34 pm A two inch eyepiece will not make objects appear brighter, but the wider field of view is great for distended objects such as clusters and nebulae. A great example of this is a view of the Double Cluster in Perseus. With galaxies, which mostly are smaller objects there is no big advantage to a two inch.
I see what you mean. My current eyepieces are:Bigzmey wrote: ↑Sat Mar 27, 2021 5:27 pm
You already have 30mm and 25mm EPs which gives you 6mm and 5mm exit pupil. Your first priority should be to add a couple EPs to cover 3mm and 2mm exit pupils. I would look for 18-20mm and 10-12mm. This would keep you going until you have a chance to pick better quality EPs.
That changes things. Looks like you are well set just need to upgrade the 25mmThe Happy Parrot wrote: ↑Sun Mar 28, 2021 1:19 amI see what you mean. My current eyepieces are:Bigzmey wrote: ↑Sat Mar 27, 2021 5:27 pm
You already have 30mm and 25mm EPs which gives you 6mm and 5mm exit pupil. Your first priority should be to add a couple EPs to cover 3mm and 2mm exit pupils. I would look for 18-20mm and 10-12mm. This would keep you going until you have a chance to pick better quality EPs.
30 mm Zhumell Wide 2" stockep .
25 mm Celestron stockep (unknown type) 1.25"
16 mmES 68 deg.
12 mm Agena StarGuider ED (same as Paradigm)
8.8 mmES 82 deg.
5 mm Meade MWA 100 deg
My main interest are nebulae and galaxies, so I find myself using the 25 mm and 16 mm by far the most. The 5 mm is a favorite for planets with thedob . The 8.8 is brand new, and I've only had a chance to use it on the moon a couple of times. The 12 mm and 30 mm get the least use, but maybe I'm all set and should be content with my mystery Celestron 25 mm eyepiece.
I think you are right, and I've been looking around, but these eyepieces are rarer than hens teeth these days. I wasn't aware of the Meade HD60, good to know there is another option. The Meade 28 mm MWA sounds interesting too.Bigzmey wrote: ↑Sun Mar 28, 2021 3:18 am That changes things. Looks like you are well set just need to upgrade the 25mm EP. I would aim for ES68 24mm, ES82 24mm or Meade 5000 UWA 24mm. However, if used 25mm X-Cel LX, Meade HD60 or StarGuider would come out it would be still good improvement over the stock EP.
I did not have any experience with 100deg EPs but if your MWA 8.8mm works nicely then other MWAs are worth considering.The Happy Parrot wrote: ↑Sun Mar 28, 2021 12:24 pmI think you are right, and I've been looking around, but these eyepieces are rarer than hens teeth these days. I wasn't aware of the Meade HD60, good to know there is another option. The Meade 28 mm MWA sounds interesting too.Bigzmey wrote: ↑Sun Mar 28, 2021 3:18 am That changes things. Looks like you are well set just need to upgrade the 25mm EP. I would aim for ES68 24mm, ES82 24mm or Meade 5000 UWA 24mm. However, if used 25mm X-Cel LX, Meade HD60 or StarGuider would come out it would be still good improvement over the stock EP.
No, the 2” format is never brighter just because it is bigger. Different coatings could easily explain your experience.The Happy Parrot wrote: ↑Sat Mar 27, 2021 12:24 pm Thank you both, Kathy and Bigzmey.
So the two-inch diameter allows a wider field of view but won't necessarily make faint objects slightly brighter.
Right now all things astronomy seem scarce and pricey, but keeping my eye pupils open wide for a Meade PWA or ES 68-82 wide eyepiece on the used market.
Thanks nFA. I've read great things about the TV Panoptics, but they are over my budget. Same for thenotFritzArgelander wrote: ↑Sun Mar 28, 2021 5:19 pm
No, the 2” format is never brighter just because it is bigger. Different coatings could easily explain your experience.
I’m very happy with TV Panoptics in the range of focal length of interest. I also have the stock Zhumell 30 mm and know that the edge fuzzes out in my Z12. The Panoptics work great. Maybe used if pricing is a concern?
Thank you for the good advice!
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