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    Default Looking for new eyepieces?



    Astro Agena has all Pentax on sale until end of March: https://agenaastro.com/clearance-spe...iece-sale.html
    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 Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2" Orion Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

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    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
    Ya gotta keep this Apo/Achro 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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  3. #2
    Bigzmey's Avatar
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    Default Re: Looking for new eyepieces?

    That's a nice discount!

    Be strong! Must not buy more EPs.

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    Default Re: Looking for new eyepieces?

    Thank you Gabby!

    these may be the originally boxed&wrapped Pentax eyepieces, manufactured before the Pentax/Ricoh fusion.
    I am tempted to count the Pentax XW 7mm and 10mm to the best wide field hunters of the galaxies.
    Lots of the galaxies are looking brighter through these eyepieces, like the NGC 6207 above the Hercules Cluster M13,
    simply a breathtaking view in the wide field.

    Andrey, don't hesitate, should you be still missing these both,

    JG
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    Default Re: Looking for new eyepieces?

    Quote Originally Posted by j.gardavsky View Post
    Thank you Gabby!

    these may be the originally boxed&wrapped Pentax eyepieces, manufactured before the Pentax/Ricoh fusion.
    I am tempted to count the Pentax XW 7mm and 10mm to the best wide field hunters of the galaxies.
    Lots of the galaxies are looking brighter through these eyepieces, like the NGC 6207 above the Hercules Cluster M13,
    simply a breathtaking view in the wide field.

    Andrey, don't hesitate, should you be still missing these both,

    JG
    Ha Ha, not you to JG!

    The truth is that I have contemplated XW many times , but in slower scopes which I favor for galaxy hunting my most used EPs are in 14-20mm range, which according to reviews is the weaker portion of XW line-up.
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    15x70, 10x50, Nikon 8x40. EPs: Pentax: XWs; TeleVue: Delites, Plossls & barlows; ES: 82os & 68os; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV; Meade: UWAs & Plossls. Filters: Astronomik: UHC; Lumicon: OIII, H-beta, DeepSky; Baader: UHC-S, M&SG, CB; Orion: UltraBlock, SG. DSO tally: 1192 (H400-1: 400, H400-2: 302, H300-3: 87;
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    Default Re: Looking for new eyepieces?

    Quote Originally Posted by Bigzmey View Post
    Ha Ha, not you to JG!

    The truth is that I have contemplated XW many times , but in slower scopes which I favor for galaxy hunting my most used EPs are in 14-20mm range, which according to reviews is the weaker portion of XW line-up.
    Yes Andrey,

    the Pentax XW 7mm and 10mm are the best in the sequence.
    However, when pulling out the spiral arms and the HII regions inside, you need more magnification.

    Best,

    JG
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    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS;
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    Default Re: Looking for new eyepieces?

    I started to do a comparison of the Pentax, Nikon-SW and TeleVue Delos 10mm 1.5 years ago or so.
    Though I was just beginning with the observations the Pentax was at the top of my list in the casual viewing. Very nice images.

    One day when I am home and can borrow the eyepieces again I will start on the more critical viewing and tests.
    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 Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2" Orion Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

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    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
    Ya gotta keep this Apo/Achro 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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    Bigzmey's Avatar
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    Default Re: Looking for new eyepieces?

    What about XF? Do they have the same light throughput as XW?

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    Default Re: Looking for new eyepieces?

    Quote Originally Posted by Bigzmey View Post
    What about XF? Do they have the same light throughput as XW?
    Hello Andrey,

    I used to have the both Pentax XF, and sold them later.
    They are certainly optically very good, the XF stands for longer distance off the telescope focus,
    and therefore well suited for bino viewers, and for filter wheels.
    On the DSOs, I was able to move deeper with the Pentax XW.

    Best,

    JG
    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS;
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    Default Re: Looking for new eyepieces?

    Quote Originally Posted by j.gardavsky View Post
    Hello Andrey,

    I used to have the both Pentax XF, and sold them later.
    They are certainly optically very good, the XF stands for longer distance off the telescope focus,
    and therefore well suited for bino viewers, and for filter wheels.
    On the DSOs, I was able to move deeper with the Pentax XW.

    Best,

    JG
    Thanks JG! I will stick to my Delites then.
    j.gardavsky likes this.

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    Default Re: Looking for new eyepieces?

    I would prefer an XW above an XF.
    Personally I was not impressed by the Pentax XF 8.5. At bright objects with dark surroundings it showed me an eyeball reflection / ghost image. I am not the only one. XW does nothing of the sort.

    https://www.cloudynights.com/article...xf-85-mm-r2737
    No need to read the whole review, just check under the Jupiter section.
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    in Schiedam : SW Evostar 120ED F/7.5, Vixen 102ED F/9, OMC140 maksutov F/14.3, SW 102MAK F/13 on Vixen GPDX.
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