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  1. #1
    WWPierre's Avatar
    WWPierre is offline HYPER GIANT
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    Default Siebert 35mm Ultra-first light



    First light; Pointed at Aldebaran. Red dot finder was a bit off, but the arrowhead in the Hyades was there in it's entirety, and crisp to the field stop, which I could see easily with the rubber rolled up, and my glasses not touching it. All my other eyepieces need the rubber rolled down, and I can't always see the field stop. I can see using this eyepiece a lot.

    At about $180 cdn. delivered, this is my most expensive eyepiece. I wanted an eyepiece that would bring the capabilities of my scope to the max at the low end of magnification, (21.66X) and I wanted to see all the Pleiades at once. Of course, that was my next stop. Oh My!!!!. Crisp diamond pinpoints against a background of deep blue-black velvet. Words fail me.

    One hour later: I was interrupted at the end of the last paragraph by a visitor, and by the time I got back to the scope, the fog had rolled in. A 15 minute viewing session is better than none, I suppose. I am going to leave the scope set up all night, checking the weather from time to time, but I don't expect the fog to lift before dawn.

    The trials and tribulations of a Wet Coast astronomer......
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    Last edited by WWPierre; 01-16-2010 at 03:18 AM.
    Meade 16" LightBridge; Celestron G-8N Bird-Jones/motorized EQ5; Orion 127 Mak/go-to EQ5; Burgess 127f8 refractor; Sky-Watcher 5" F/5 collapsible dob; 90mm Mak/motorized EQ2; Royal Astro 76/910-GEM; Meade 60x700 refractor/alt/az; Zhumell 25x100 Coin Ops; GalilleoScope. Celestron 8mm-24mm zoom; lots of fixed EPs,some good, some..not so much. A small collection of surveying instruments; a forest of tripods; Canon Rebel Xti. Confirmed gadget junkie; Custodian of the Magnetic North Pole (Send $1.00 to Pierre each time you use a compass.)
    49-41-37.03N 123-09-29.61W Calculated magnetic declination: 17° 39' East

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  2. The Following 4 Users Say Thank You to WWPierre For This Useful Post:

    admin (01-17-2010),Dublin sky watch (01-16-2010),ebusinesstutor (01-19-2010),Kent55 (01-20-2010)

  3. #2
    mikec's Avatar
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    Default

    Nice looking EP Pierre. I take it that it compliments your 8-24 zoom pretty well. I remember you talking about Siebert before, do you have other Sieberts? Or maybe my question is answered on your sig. -Mike
    Mike
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    ED120 Refractor (fl=900mm - f/7.5) on an EQ5 mount, Zhumell Z-10
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    (fl=1250mm - f/4.92). Canon 15x50 IS Binos, Canon Rebel XI
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    (1000D),
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    Starshoot DSI II and all the accessories I can afford for now (unless you guys tell me different)
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  4. #3
    WWPierre's Avatar
    WWPierre is offline HYPER GIANT
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    Default

    That is my only Siebert eyepiece, but I do have one of his erecting prisms which he designed especially for fast newts. These old eyes can't detect any degredation in the image with it as opposed to without. I don't use it for astronomy, though. Perhaps I am too much of a traditionalist. It's great for watching mountain climbers.
    Meade 16" LightBridge; Celestron G-8N Bird-Jones/motorized EQ5; Orion 127 Mak/go-to EQ5; Burgess 127f8 refractor; Sky-Watcher 5" F/5 collapsible dob; 90mm Mak/motorized EQ2; Royal Astro 76/910-GEM; Meade 60x700 refractor/alt/az; Zhumell 25x100 Coin Ops; GalilleoScope. Celestron 8mm-24mm zoom; lots of fixed EPs,some good, some..not so much. A small collection of surveying instruments; a forest of tripods; Canon Rebel Xti. Confirmed gadget junkie; Custodian of the Magnetic North Pole (Send $1.00 to Pierre each time you use a compass.)
    49-41-37.03N 123-09-29.61W Calculated magnetic declination: 17° 39' East

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  5. #4
    Lenbo's Avatar
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    Default

    Thanks Peter. I've seriously been considering adding the Siebert eyepiece for widefield views. I've read some pretty good things about it. Just need to convince myself to spend a little money. (Can't help it. I'm cheap. )Please keep us updated when you get a chance to use it a little more. Interested in how it works with your f5. Mine is f4.9.
    Len
    Astro Tech 150mm mak f/12 -
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    8 inch reflector f/4.9 - VRC8 (RC Mod for Mallincam)
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  6. #5
    WWPierre's Avatar
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    Default

    Harry Siebert is a talented optical engineer. I think it would be appropriate to mention him in the same sentence as Al Nagler.
    Meade 16" LightBridge; Celestron G-8N Bird-Jones/motorized EQ5; Orion 127 Mak/go-to EQ5; Burgess 127f8 refractor; Sky-Watcher 5" F/5 collapsible dob; 90mm Mak/motorized EQ2; Royal Astro 76/910-GEM; Meade 60x700 refractor/alt/az; Zhumell 25x100 Coin Ops; GalilleoScope. Celestron 8mm-24mm zoom; lots of fixed EPs,some good, some..not so much. A small collection of surveying instruments; a forest of tripods; Canon Rebel Xti. Confirmed gadget junkie; Custodian of the Magnetic North Pole (Send $1.00 to Pierre each time you use a compass.)
    49-41-37.03N 123-09-29.61W Calculated magnetic declination: 17° 39' East

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  7. #6
    ebusinesstutor's Avatar
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    Default

    Are you sure it is a Siebert Ultra, Pierre? They only go to 30mm.

    I think you have a 2" Siebert Observartory 35mm eyepiece. Similar to my 36mm one.
    Garland Coulson
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    http://NanaimoAstronomy.com

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  8. #7
    WWPierre's Avatar
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    Default

    You will find at the bottom of this page, Garland. I know it's not a 2" because I only have a 1.25" focuser.

    I originally got the 35mm "Performance" series, but it overpowered my optics. The exit pupil was too big, and caused blackout. The math predicted that, but I just had to find out for myself. I was going to exchange it for a 30mm of the same series, but he doesn't make one, so I figured I would go with the Ultra, being as how I had it half paid for anyway. A quick phone call to OK the exchange, and I wrapped the 35mm in enough greenbacks to cover the difference and sent it off in a case that I had made from a small thermos drink container.

    Harry is very good about exchanging stuff and keeping his customers happy. The first erecting prism he sent wouldn't focus. When I called and asked about it, he asked what kind of scope I had, and knew right away what was wrong. I sent it back and he modified it. Now it works perfectly.

    I like to patronize people who work at home, like myself. The very reasonable price for top quality is a definite bonus.
    Meade 16" LightBridge; Celestron G-8N Bird-Jones/motorized EQ5; Orion 127 Mak/go-to EQ5; Burgess 127f8 refractor; Sky-Watcher 5" F/5 collapsible dob; 90mm Mak/motorized EQ2; Royal Astro 76/910-GEM; Meade 60x700 refractor/alt/az; Zhumell 25x100 Coin Ops; GalilleoScope. Celestron 8mm-24mm zoom; lots of fixed EPs,some good, some..not so much. A small collection of surveying instruments; a forest of tripods; Canon Rebel Xti. Confirmed gadget junkie; Custodian of the Magnetic North Pole (Send $1.00 to Pierre each time you use a compass.)
    49-41-37.03N 123-09-29.61W Calculated magnetic declination: 17° 39' East

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  9. #8
    ebusinesstutor's Avatar
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    Ah, thanks Pierre. Now I see it.

    I also like to patronize entrepreneurs since I am one myself.
    Garland Coulson
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    http://NanaimoAstronomy.com

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