•December 6, 2013 • Leave a Comment
Current my most favorite camera is Fuji X-E2. This should be ever the best I owned. Good color depth, fine details and good-quality Fujinon lens, and all made in Japan. X-E2 allows to use 3rd party remote timer controller. Thank you, Fuji! This is really good feature for astronomical use since I intended to use X-E2 for solar imaging as well as nighttime. Unfortunately I couldn’t use for the sun yet though. I did initial test for time lapse movie.
X-E2 with Losmandy StarLapse
X-E2 has good EVF setting which allows to totally shut off EVF operation. This should be very helpful for saving the battery. I will try to use X-E2 for astrophotography too.
•December 5, 2013 • Leave a Comment
1st lot of 67FL objective is coming up in Japan. As mentioned several time, these are Canon-made fluorite optics. As far as I know, Canon is the sole producer who is continuously and commercially polishing fluorite optics in the world.
67FL F3.8 Astrograph (objective is prototype)
2567 + 7025 + 2 x 7050 + 7801 + FTF-BORG + FTF-M57 + 7352 + 7885 + 5005 + Canon
Unlike 7870(0.7x reducer), this system allows to use longer main tube (125mm total). So it’s better for overall weight balance. If M57 camera rotator isn’t used, we can replace these 3 tubes with + 7136. This system will be added as [part # B06738] in astrograph package. This is fastest speed among BORG astrograph family.
67FL telephoto lens set [#6267]
•December 1, 2013 • Leave a Comment
This universal dovetail bar was originally designed as the mounting block for Hinode SG – solar guider. But it can be used for other different setup. So it will be sold separately.
Part # [UDB]
Followings are some examples.
Hinode SG with the conventional finder base
Guide scope with finder base
Shown with Televue quick release bracket[part # QRB-1002]
This combination allows to set guide scope or Hinode SG at the top of Televue original clamshell holder.
And finally, several holes and a slot inside bar allows for the direct attachment onto the plate too.
This versatility should create a lot of possibilities. If you wish to minimize total weight, or if you have Takahashi clamshell holder and are looking for the good solution to set a guide scope, this will be one of solutions too.
•November 30, 2013 • Leave a Comment
BORG 67 FL will be available next week. This is 300mm/F4.5 fluorite optics.
[#2567] the objective assembly for series 60
Like 71FL, it can be converted into Series 80 system too. That should be more suitable for astrophotography since series 80 allows to use FTF. Following astrograph set will be available.
67FL F3.8 (with 7885 reducer)
This optical system is capable of covering up to APS-C sized sensor. So this should be perfect match with Sony H694/H814 sensors and Truesense KAF8300. If you have such size of sensor, and are looking for faster speed and wider field of view, this is the one. The dedicated super reducer for covering full frame is expected to be available 3rd or 4 quarter of next year.
Black version will be available too.
•November 26, 2013 • Leave a Comment
This is our Jimmy’s setup – 71FL F3.9 + STF-8300C with filter box (# 7519) in front of a camera.
7519 allows to switch filters without disassembling the system. It’s convenient, especially to one-shot color cameras if you wish to change filter based on sky conditions and targets. Filter box allows to set 48mm or 52mm such as LPS-P2, LPS-D1, LPS-V4 and HEUIBII etc. IDAS filter is completely par-focal. So you don’t have to be worried about the focus shift at all.
See IDAS Quality Standard.
If you put LPS-V4 into a filter box and set deep-red filter in front of the objective lens, it turns 19nm bandpass H-alpha filter too. See the details at
•November 22, 2013 • Leave a Comment
We start playing around a cooled one-shot color camera to see how OSC camera performs, comparing with the monochrome ones. Yes, the monochrome is ideal. But I wanted to see how OSC can get close to the ideal. This is 1st shot with SBIG STF-8300C, BORG 71FL F3.9 and Ha filter, taken by our Jimmy Nguyen.
Believe or not, this was taken with OSC camera. It looks pretty good Ha image at least to me. The details are well resolved and shown up. Looks good dynamic range and resolution. This result more encourages us to use recent Sony OSC sensors such as 694 and 814. They are smaller pixels (should contribute the resolution) and higher sensitivity. Also this reminds me these small pixel sensors are definitely perfect match with BORG astrographs.
•November 21, 2013 • Leave a Comment
I just made quick daytime test between P2 and D1.
The modified 6DH was used in AWB mode. Since these are light pollution suppression filters, eventually I have to test under the light polluted night sky though. LPS-P2 is well recognized as one of best filters in the market to effectively block light pollutions while maintaining the good color balance. D1 is further improved as you can see.