Search found 277 matches

by ivan
Sun Feb 10, 2019 3:22 pm
Forum: Buy and Sell
Topic: WTS: BNIB Baader 3.5nm HA filter [Sold]
Replies: 3
Views: 891

WTS: BNIB Baader 3.5nm HA filter [Sold]

Hi all, I'm looking to sell my Baader 3.5nm enforced HA filter. It is new in box, unopened with its seal still intact. Size is 50.8mm round unmounted. I'm selling it as it was a replacement by the dealer for a faulty unit that I purchased earlier, but I had already bought another HA filter in the in...
by ivan
Mon Dec 10, 2018 3:54 pm
Forum: DIY Astronomy
Topic: Building a DIY F/15 Refractor
Replies: 6
Views: 2809

Re: Building a DIY F/15 Refractor

I was about to post something similar and I saw this thread. Chanced upon this 60ED doublet on aliexpress: https://www.aliexpress.com/item/CSO-Complex-achromatic-telescope-objective-lens-60ED/32862484791.html?spm=a2g0s.13010208.99999999.268.64b63c00jYa7OD They also sell it with the lens cell for 140...
by ivan
Sat Dec 08, 2018 12:13 am
Forum: Buy and Sell
Topic: WTS: Baader Stronghold Tangent Assembly [sold]
Replies: 0
Views: 662

WTS: Baader Stronghold Tangent Assembly [sold]

Good day to all, I'm looking to sell my baader stronghold tangent assembly, which allows micro adjustments to be made for loads up to 7kg in piggyback mounting. It is very solidly built and should provide a flexture-free solution which will probably be quite useful for imaging. I've never used it an...
by ivan
Tue Sep 18, 2018 8:27 am
Forum: Astrophotography
Topic: Sagittarius Triplet from Singapore
Replies: 9
Views: 3076

Re: Sagittarius Triplet from Singapore

Thanks Remus. Been awhile indeed, hope to join you for stargazing sessions next time.

Thanks KK. Time for a switch myself after shooting in red haha
by ivan
Wed Sep 12, 2018 12:30 am
Forum: Astrophotography
Topic: Sagittarius Triplet from Singapore
Replies: 9
Views: 3076

Re: Sagittarius Triplet from Singapore

Thanks Richard and Kochu!
by ivan
Mon Sep 10, 2018 7:39 pm
Forum: Astrophotography
Topic: Sagittarius Triplet from Singapore
Replies: 9
Views: 3076

Sagittarius Triplet from Singapore

Hi all, It's been a while since I've last posted images here. My new camera which I bought early this year ended up having to go back for repair due to shutter issues. After a few months of waiting, I finally got it back in early August, and could then give it a proper first light. With a nice strea...
by ivan
Wed Aug 15, 2018 12:00 am
Forum: Equipment Discussions
Topic: A Newbie's Impression of the Samyang/Rokinon 135 F2 for AP
Replies: 4
Views: 2332

Re: A Newbie's Impression of the Samyang/Rokinon 135 F2 for

Nice review! Have been looking at this lens for a long time too. Truly a low light beast. Apparently it's also one of the imaging "scopes" used at the DeepSkyWest remote observatory: http://deepskywest.com/rokinon-135mm-f-2-gallery/
by ivan
Mon May 21, 2018 6:54 pm
Forum: Buy and Sell
Topic: WTB: 50mm 3nm unmounted OIII/SII
Replies: 0
Views: 606

WTB: 50mm 3nm unmounted OIII/SII

Hi,

I am looking for a 50mm round unmounted OIII/SII filter with 3nm bandpass (Astrodon/CS/Chroma etc). Just trying my luck here, let me know if you have one for sale.