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Thread: First Light on a Bresser 60° ‘Plossl’

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    Default First Light on a Bresser 60° ‘Plossl’



    I got first light with the 14mm Bresser 60° ‘Plossl’ on the Moon for around 30 minutes until cloud and inclement weather ended the session. The conditions were surprisingly crisp in between the clouds and there were brisk moments of above average clarity. I used a 90mm Orion StarMax (f/13.8) on an alt-az mount.

    Bresser14mm c.jpg

    Observation was from 17:30 - 18:00 GMT, 2/2/17, Waxing Crescent, 28.8% illumination, 26.1° azimuth, altitude 35.4°, 375,126 kilometres distant (Pisces). Some very nice terminator detail could be seen. I also observed Venus for a short time, the phase was easily apparent.

    moon.png

    The Bresser was in use most of the time but I briefly managed to directly compare it with a 19mm TeleVue Panoptic, a 15mm Vixen NPL and a 12.4mm Meade Plossl. The Bresser showed a bright, sharp image and I couldn’t really discern any difference in quality with the other eyepieces. There was no edge of field brightness, ghosting or light scatter from what I could see.

    POSIDONIUS A.jpg

    The rubber eyecup is pleasant to use and not intrusive or irritating in any way, I’m not usually a great fan of them, but this was very much like the soft, light eyecup on most Meade and GSO Plossls. I have a feeling Meade and Bresser both source from JOC and GSO. On the StarMax the 14mm Bresser gave me 89.2x with 1°, 29‘,17“ TFOV for almost exactly a one millimetre (1.0086mm) exit pupil.

    CATHARINA P.jpg

    Although the test was brief, the Bresser 14mm looks like a keeper and I’m seriously looking at the 5.5mm version.

    IMG_20170203_122751.jpg

    Lunar images by VMA, Starry Night7 and GIMP.

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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Nice report, thanks for posting. It would be interesting to see how it would do on fainter objects.

    Love your observing spot!

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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Quote Originally Posted by Bigzmey View Post
    Nice report, thanks for posting. It would be interesting to see how it would do on fainter objects.

    Love your observing spot!
    Thanks. It would certainly be interesting to see how it performs in other scopes. It would give me 28.5x in my ST80 and 64x in my 13cm Newtonian. I have a 14mm Baader Morpheus that is often used for DSO's on my Newtonian. A 14mm eyepiece gives me just over a 2mm exit pupil on it, ideal for some of the brighter emission nebulae.
    Bigzmey and Peter802 like this.

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    Default Re: First Light on a Bresser 60° ‘Plossl’

    I've finally got my pair of 20mm Bresser Plossls after waiting for them after the original pair were returned because of defects.

    Plerfles1.jpg

    I have four of these Bresser Erfle/Plossls now and I find them quite competent in scopes f/6 or slower. They are well made, with brass smooth drawtubes that have good even baffling. The 60° FOV makes a difference and the correspondingly large eye lenses/field stops of the 20mm version makes them ideal for binoviewers.

    WO bino 20mm Plerfles.jpg

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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Nice report. Thanks for posting. Clear skies.
    Peter.

    Scopes: Bresser AR-127S 635mm. Celestron Travel
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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Quote Originally Posted by Peter802 View Post
    Nice report. Thanks for posting. Clear skies.
    Thanks, I will report further on how they fare when the weather allows me to use them more lol.

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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Good to hear they are working out well.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
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    Default Re: First Light on a Bresser 60° ‘Plossl’

    The Bresser 60 eyepieces come and Meade 5000 series Plossles came from JOC. The Bresser 5.5 has five elements, if I remember reading correctly, while the Meade has 6. I am thinking the Bressers may have had some optical tweaking as well as a change in the outer housing from the Meades. I have all the 1.25 inch Meades and have used them extensively. My favorites are the 14 and 9mm. The 26 is a good finder eyepiece, which I enjoy using. The 20mm is a good eyepiece, but I kept jumping from the 26mm down to the 14mm and rarely used the 20mm.

    If they were being sold in the United States, I would most likely buy some of the Bressers. I really like the Meade eyepieces, but think the housing on the Bresser 60 eyepieces is better.

    The Meade 5.5 does not seem to have quite the light throughput of the rest of the series, which they have probably fixed in the Bresser version. If they have tweaked the optics some with the rest of them, then so much the better!

    I expect you will enjoy your new eyepieces. In my mind, they are good ones.
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    Bill Steen
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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Quote Originally Posted by Gabby76 View Post
    Good to hear they are working out well.
    Thanks Gabby, I was so impressed with the overall build quality and viewing I thought I'd invest in some more of the Bresser 'Plerfles'.

    5.5 Plerfle.jpg

    The 5.5mm (above) was originally ordered with the 20mm pair. It was fine but both 20mm EP's had faults. One had a white powdery debris deposit covering the eye lens and eyeguard. As it proved difficult to clean off I decided to return them. The other had two dark streaks visible when viewed through and I decided it was better to return them than try to clean anything else.

    bresserborkers2.jpg

    You can see them in the jpeg above. Bresser EP's often come without an eye lens dustcap and in a plastic bolt case. I've added my own dustcaps although the drawtubes had end caps. I haven't had much opportunity to test the 5.5mm in my f/5 ST80 although from what I can see it seemed to handle it OK. It would only be for relatively high mid range magnifications (73x) anyway, unless I Barlow it, which might actually help. If it doesn't work out for the ST80 it will almost certainly good for my f/6.9 130mm Newtonian (164x).
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    Default Re: First Light on a Bresser 60° ‘Plossl’

    Plerfels, I like that
    The powder may have been dust from shipping dessicant. To bad it got on the eyepiece though.
    The center to mid should still be quite sharp even in a fast scope though there may be a bit of aberration closer to the edge.
    I hope they do work well. A good Erfle can be a very nice eyepiece in a slower scope.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier
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    thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)

    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

 

 
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