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Which is your most used set of EP and 2nd for BT 100x45 or 90 why?

binoculars accessories equipment eyepieces observing optics
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#1 ICU2

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Posted 22 October 2019 - 06:34 PM

I have to be selective  in which eyepiece sets to get for budget and overall quality consideration would go a bit over if it would make that much a difference in the views  scanning the sky!



#2 Allan Wade

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Posted 22 October 2019 - 08:23 PM

I have 82mm and 120mm binoscopes. I enjoy using the 82’s at low power for the widest field with the 24 Panoptics. The 120’s I prefer a bit more magnification, so the 12.5 Docters spend a lot of time in the focusers. A friend has the APM100’s and 12.5 Docter, and they are great in those bino’s as well. 

 

If you could only have one pair the Docters are hard to beat, but they are expensive. I like the Morpheus very much as well, and a 12.5 pair of those would be a good place to start.


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#3 duck2k

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Posted 22 October 2019 - 09:12 PM

APM 100 = 24 UFF, 12.5 mm Morphs

 

APM 120 = 24 UFF, TV Delos 10 mm

 

:)



#4 guangtou

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Posted 23 October 2019 - 07:40 AM

APM100-90

1st: 12.5 Docters, because that magnification and exit pupil works well from both my light polluted back yard as well as my “dark” site

2nd: 9mm Morpheus, because for wider views I use a different binocular. Honestly, the 12.5 is in the APM 100 90% of the time.

#5 ICU2

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Posted 23 October 2019 - 08:03 AM

Well Seems the Docters 12.5 must be some awesome eyepieces, but unfortunately I am not able to afford such a luxury in my retirement years, But the Morph,12.5 looks to be a good 2nd choice as well the APM 24 UFF  . I have the APM 18mm that came with the BT but looking to cover the the high and lower spectrum to get the most out of the views so looking at what CN members are using and recommend , Thank's       Eddie 



#6 garret

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Posted 23 October 2019 - 10:29 AM

I don't have a eyepiece set that I use the most throughout the year.

My most used 'Summer' (milky way) ep set is the Vixen 22 mm LVW, 'sharp to the edge' and very comfortable for my eyes.

My most used Autumn and winter set is the Delos 12mm, excellent for general observing.

My most used Spring (galaxies) set is the Delite 9mm; with the Delites the ep is not the weakest link.



#7 Rich V.

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Posted 23 October 2019 - 10:53 AM

My most used 'Summer' (milky way) ep set is the Vixen 22 mm LVW, 'sharp to the edge' and very comfortable for my eyes.

 

IMO, since binos are wonderful wide field viewing tools, like Garret, having one pair of eyepieces that allows close to the bino's maximum FOV for summer MW viewing is a necessity.  Where you go from there depends on your observational interests.  40x, 50x and 75x work well for the range I'm interested in.  I have 150x eyepieces but the exit pupil is too small and the image is getting soft at that point.  I'd rather use a telescope at that magnification as the resolution is greater.

 

Rich


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#8 RickyD85

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Posted 24 October 2019 - 04:13 PM

12.5mm seems to be the consensus for the APM 100’s as a go-to eyepiece.

So they would be the default recommendation (Morpheus, Docter, APM) It sounds like you want maximum value for money so go for the Morpheus or APM’s. The relatively new 12mm APM ‘Docter clone’ look very good and I would get them if I didn’t already have the Baader Morpheus 12.5mm eyepieces.

I personally would buy 4.5/6.5mm for moon and planetary, 12mm for all-round, and the widest FOV 20-24mm and you’ve got most bases covered.

#9 GrahamDFyffe

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Posted 08 November 2019 - 10:34 AM

I have the similar Obie BT100XL an my most used eyepieces are the Morpheus 9mm and 17.5mm.

 

As to why. With my skies (reasonably dark suburban) I find that the 17.5s for wide field darken the skies for a more pleasant view than my APM 24s without compromising the FOV significantly (76° versus 68°). I also find that the 9mm provide the best higher magnification views for most objects without dimming them too much. I mostly observe open clusters. I find the Morpheus eyepieces very comfortable to use.


Edited by GrahamDFyffe, 08 November 2019 - 10:42 AM.



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