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Burgess Optical - New Eyepieces Soon

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140 replies to this topic

#101 nicoledoula

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Posted 09 August 2018 - 09:50 PM

Well, the fact that clouds appeared at all is promising to us glass half full folks. :)



#102 BillP

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Posted 09 August 2018 - 10:27 PM

Well, the fact that clouds appeared at all is promising to us glass half full folks. smile.gif

 

I got some breaks tonight...enough for Jupiter.  Unfortunately I do not have another min-glass eyepiece in 10mm so had to compare the 10mm Ultramono to the 10 XW, then both of those with 2x TV Barlow to get to more proper planetary magnification.  Whether with or without Barlow, in my f/8 TSA-102 on Jupiter, clearly a more contrasted and slightly less scatter view with the Ultramono.  Easily was picking up details more readily with the Ultramono.  Eye relief was comfortable and my face was just touching the eye guard when extended.  When I get some more time I will give a go with the 10mm UM with 2x TV against the 5 XO.  If it even comes close that will be saying a lot.


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#103 starcam

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Posted 09 August 2018 - 10:52 PM

I had the burgess 10mm out tonight, in a f7 refractor viewing saturn..

With no barlow 50% out from the center saturn became an elongated comet, the 10mm vite had much better correction.

Using the TV 2x barlow  and 10mm burgess the comet aberration cleaned upat 5mm give or take.

I then compared the xo5 to 10mm and TV 2x barlow, funny Bill was going to try that next. I just got in and read his report.

The xo5 had a lot better contrast and detail with nice banding on saturn.

The 10mm burgess is not gonna sit well with the shorter focal length or at f7 due to the aberration.

As Bill said the er was just at the top of eye guard.

Clouds started to come in and the humidity is ridiculous.


Edited by starcam, 09 August 2018 - 10:56 PM.


#104 BillP

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Posted 09 August 2018 - 11:21 PM

I also observed Mars tonight with TSA-102.  This time 10UM+TV2x vs 5XO.  It was basically too close to call and both were performing well.  South polar region was very nice and bright white.  Darker rim along its edge.  Even with the dust storm Syrtus Major was peeking through, as was part of Mare Serpentis, and very faintly Mare Acidalium.  Other than the south polar region most of the other features were difficult to see in the 5XW, so both the 10UM+TV2x and the 5XO were doing much better job.  Focus snap on the 10UM+TV2x and the 5XO were both very authoritative.  Less scatter in the XO.  Btw...Mars is BIG smile.gif  Since seeing was pretty good also used the 10UM+2.5xPowermate for a 4mm effective focal length.  Very nice view!  FYI, in addition to no filtration, use of the #30 Magenta filter and the combination of the #30 Magenta + Baader Contrast Booster helped brigh out the Mars features much better.  So those let me pierce thru the dust some :-)

 

Using the 10UM without Barlow in my f/8 TSA I noticed it had FC which became evident at about 50% from center.  Not much different than the TMB Supermonos.  Could easily focus it out to get a sharp planetary view out to 75% from center.  After that could not refocus to sharp as lateral color and other undetermined aberrations set in (will figure that out later). 

 

Using the 10UM on some doubles was really nice also.  Background FOV showed darker than in 10XW and star colors were just as good, as was ability to see faintest stars when I turned to some Open Clusters and Globs.  Swan nebula showed details a little better in the UM, but did not like the framing of that nebula in the small AFOV of the 10UM.  So although a little more detailed/contrasted in the 10UM, preferred the 10XW due to the still very good view and the surrounding context.

 

I've never found a 4mm eyepiece that I was satisfied with, including the 4 ZAO-II (not as sharp as I expected) and the 4 TMB Supermono (way tight ER and too tiny AFOV, but sharp).  Was very please with the initial response from the 10UM+2.5xPowermate so it might fit the bill for me as a 4mm substitute.

 

Hi Steve!  Sorry I missed Saturn tonight...forgot it was out too.  Yes...crazy humid out here too!  Which f/7 were you using?


Edited by BillP, 09 August 2018 - 11:30 PM.

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#105 starcam

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Posted 11 August 2018 - 02:48 PM

I'm thinking now that the comet feature was an out of focus saturn, due to fc. I did not adjust the focus knob.

Not a pro like Bill.


Edited by starcam, 11 August 2018 - 02:49 PM.


#106 ThomasM

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Posted 18 August 2018 - 04:15 AM

Any news?

 

Did someone had the chance to compare with a 10 mm planetary eyepiece, such as Baader Classic Ortho?



#107 25585

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Posted 18 August 2018 - 05:52 AM

I would be interested in trying out a Burgess Erfle, but they do not export I believe.

 

Has anyone experience of them?  



#108 BillP

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Posted 18 August 2018 - 01:16 PM

I would be interested in trying out a Burgess Erfle, but they do not export I believe.

 

Has anyone experience of them?  

 

I am evaluating one now.  Really quite nice and enjoyable views so far in my f/8 scopes.  And when amplified to 10mm held pace with my 10XW quite nicely (2.5x Powermate).  Will be moving to an f/6 Apo and f/4.7 Dob later.


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#109 emilslomi

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Posted 19 August 2018 - 04:34 AM

After what appeared to be an extended beach holiday in some transit center in Miami, the UM finally arrived here last week. I had one good evening out with it looking at the moon, Jupiter, Saturn and Mars. It was a G'n'G session with my WO. Nothing comparative, planets low, just some time to get familiar with the UM.

 

The foam cut insert of the box holding the UM was a nice touch. I also like the little container it comes in. I will not miss caps. Craftsmanship is better that I expected from the pictures on the web. It is en par with the KK orthos. The barrel is microbaffled, unfortunately in a shiny black. All parts around the fiel stop are a matte black.

At f6, the image is very sharp in the center one third of the FOV, usable in the middle one third and barely good for context in the outer one third. The center is very sharp though with almost no scatter, which makes me really curious about the xo that Bill ranks even better. At the x48 that the UM gives with the WO, I got nice bands on Jupiter with some detail visible in the bands. Saturn gave a really sharp transition from the planet to the black space around it, one belt and glimpses of the Cassini division (not full, only sides). The moon was a little disappointing. If the object can not be kept in the center, the lower quality of the outer FOV did didtract me. If the object fills the FOV, it looks a little like a lomograph :-) The 30deg FOV was looking wider than I expected after reading so many "view through a straw" comments on fields like that in other threads. Eyerelief was comfortable, but I also have no problems with 6mm orthos. The UM was way more comfy than that though. About as nice as the TVZ 3-6 that I also was using that night.

 

It's a keeper for both the design's sake and the views it gives. I'll try to do something comparative the next time I'm out with the f11.

 

Cheers, Emil


Edited by emilslomi, 19 August 2018 - 06:29 AM.

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#110 25585

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Posted 19 August 2018 - 07:42 AM

I am evaluating one now.  Really quite nice and enjoyable views so far in my f/8 scopes.  And when amplified to 10mm held pace with my 10XW quite nicely (2.5x Powermate).  Will be moving to an f/6 Apo and f/4.7 Dob later.

Looking forward to your findings Bill bow.gif



#111 The Luckster

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Posted 17 November 2018 - 12:02 AM

I thinks I'm going to order the 10mm BUM (LOL!), and the 24mm Erfle as well.  Heck, why not?

 

 

CS

 

jason


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#112 The Luckster

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Posted 17 November 2018 - 10:17 PM

I thinks I'm going to order the 10mm BUM (LOL!), and the 24mm Erfle as well.  Heck, why not?

 

 

CS

 

jason

What I've read here in this thread has convinced me enough to purchase the Burgess Optical 10mm Ultra Mono; sounds like a good product at a good value.

 

I just ordered the 10mm Ultra Mono, but I talked myself out of the 24mm Erfle.  I own an ES 24 68* and do not need to double-up or buy just for comparison.  The 10mm will give me a dedicated planetary ocular (in both 10mm and 5mm TV Barlowed) for use with my ES 127mm f/15 Mak.

 

 

CS

 

 

jason



#113 Sarkikos

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Posted 18 November 2018 - 09:06 PM

I might have ordered the 10 UM if I didn't already have a 5 XO.

 

Mike



#114 BillP

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Posted 20 November 2018 - 11:39 AM

I have a review of the "Burgess 24mm Modified Erfle & 10mm Ultra Mono" and an article on some local to me exoplanet transit imagers titled "Amateur Exoplanet Hunting at the Mark Slade Remote Observatory (MSRO)".  I submitted them to CN about a month ago along with an article on some local (to me) exoplanet transit observers.  Not sure when they will be posted.  I hope before Christmas!!  I do have them posted on other sites though here, in UK, and Australia.


Edited by BillP, 20 November 2018 - 11:44 AM.

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#115 The Luckster

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Posted 20 November 2018 - 11:46 AM

My 10mm has been shipped.

 

 

CS

 

 

jason



#116 nicoledoula

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Posted 20 November 2018 - 01:21 PM

"Exoplanet" transits Bill?  What are they?  And why didn't you link to your review of the 24mm? 



#117 emilslomi

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Posted 20 November 2018 - 02:56 PM

Nice review of the 10mm Bill. Yes, very specialist eyepiece. But it is darned sharp in the center of the FOV! Would be great if Burgess would add a 6mm. Are you sure about the eye relief? I did not measure, but it was ways more comfortable than my 6mm KK ortho. I got mine because I wanted to experience that type of design - nice to get a keeper eyepiece on top of that.

 

Cheers, Emil



#118 BillP

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Posted 20 November 2018 - 03:10 PM

Yup...I did the ER measures several times.  Shorter than advertised but still comfortable for a 10mm.



#119 BillP

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Posted 20 November 2018 - 03:15 PM

"Exoplanet" transits Bill?  What are they? 

 

When another solar system is oriented such that the orbit of one of its planets passes in front of the star, this causes a dip in the light from the star.  This is the process on how the Keppler spacecraft discovered all the exoplanets it did.  So turns out that amateurs can potentially do the same with their imaging setups and verify the transit data from Kepler and other professional sources.  Followup verification from ground instruments, including amateurs, will actually be required for the new Transiting Exoplanet Survey Satellite (TESS).



#120 leonard

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Posted 20 November 2018 - 04:25 PM

Yup...I did the ER measures several times.  Shorter than advertised but still comfortable for a 10mm.

 

 

 

             An the number is .............



#121 BillP

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Posted 21 November 2018 - 08:02 AM

4.8mm usable from top of folded down eye cup.  6.8mm optical from top center of eye lens.  In field use, the extended eye guard would just touch my face when observing to see the entire FOV.  So did not "feel" as tight as the numbers indicated.


Edited by BillP, 21 November 2018 - 08:03 AM.

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#122 eros312

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Posted 23 November 2018 - 05:55 PM

Received my Mono today. Here it is with a 10mm Plossl, a Pan 24mm, and a 32mm Plossl for size comparison. It weighs about the same as the 10mm Plossl.

IMG_20181123_174621.jpg


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#123 The Luckster

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Posted 24 November 2018 - 12:26 AM

I got mine today, as well.  Well packaged, very nicely machined and constructed.  Weighed in at 51grams.  I cannot wait to use it.  Figures the planets are beginning to hibernate and/or disappear, rain is rolling in AND I had Bi-lateral Inguinal hernia surgery last week...I ain't 'spose to lift anything for a while.

 

Still, I'm a bit excited.

 

Some pics....

 

 

45110768765_a1ba9dcec9_z.jpg

 

32151887118_88e0b6ebf7_z.jpg

 

45111144945_5d2a62fcf9_z.jpg

 

31083850327_1b99d2d704_z.jpg

 

 

CS

 

jason


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#124 Shneor

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Posted 24 November 2018 - 01:59 AM

I got mine today, as well.  Well packaged, very nicely machined and constructed.  Weighed in at 51grams.  I cannot wait to use it.  Figures the planets are beginning to hibernate and/or disappear, rain is rolling in AND I had Bi-lateral Inguinal hernia surgery last week...I ain't 'spose to lift anything for a while.

 

Still, I'm a bit excited.

 

Some pics....

 

 

45110768765_a1ba9dcec9_z.jpg

 

32151887118_88e0b6ebf7_z.jpg

 

45111144945_5d2a62fcf9_z.jpg

 

31083850327_1b99d2d704_z.jpg

 

 

CS

 

jason

 

I got mine today, as well.  Well packaged, very nicely machined and constructed.  Weighed in at 51grams.  I cannot wait to use it.  Figures the planets are beginning to hibernate and/or disappear, rain is rolling in AND I had Bi-lateral Inguinal hernia surgery last week...I ain't 'spose to lift anything for a while.

 

Still, I'm a bit excited.

 

Some pics....

 

 

45110768765_a1ba9dcec9_z.jpg

 

32151887118_88e0b6ebf7_z.jpg

 

45111144945_5d2a62fcf9_z.jpg

 

31083850327_1b99d2d704_z.jpg

 

 

CS

 

jason

On December 7, Mars and Nepture will almost be in the same field of view in your biggest scope (17 arcminutes apart)...hope you are well enough by then.



#125 Jaimo!

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Posted 11 December 2018 - 08:40 PM

Does anyone else have any reports...?  I'm very interested in this eyepiece's performance and I have been following this thread for a while.

 

Jaimo!




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