Posted on Leave a comment

Sightron DBP-EX UHS

UHS version is available now.

Pre-shifted off-center design is ideal for RASA,HyperStar and regular camera lenses.

Also Hutech carries several filter drawers like

All filter drawers are fully designed for Sightron’s glass thickness. So no compromise due to the improper light path length.

I will keep updated on the test.

Posted on Leave a comment

1st Light thru SJ DBP EX

This is 1st shot through SJ dual narrowband filter EX. Unfortunately the sky was a bit hazy and the optics used was a slightly improper. So it might be a little lose the Ha signal due to the blue shift. Originally I planed to use F3.6 scope. But I forgot an adapter for that. So this is a backup system.

SJ DBP-EX + Sigma 105mm Art @F2.2 + Player One Poseidon-C, 30×3′ (gain 0/-15°C)

And my setup.

The new filter is expected to come in stock next week.

Posted on 2 Comments

SJ Dual Narrowband Filter

I got 1st sample of SJ DBP EX.

Red line is a new EX version

Features are;

  • Higher transmission
  • Flat top
  • Steep cutoff lines
  • Clean bottom cuts
  • Fused Quartz – excellent purity and transmission
  • SJ-proprietary premium coating – virtually halo-free

I had the chance for the halo test just before the marine layer came in last night. Sigma 105mm is like 3.5″ scope at F2.2 speed.

Unfortunately California’s June gloom season came in again. This will be commercially available middle of this month.

My new blog : https://tedastro.wordpress.com/

Posted on Leave a comment

EMCAM Mount with Binoscopes

I got 1st unit of EM31 Pro. Since ALT-AZ top-mounted mode is quite unique, I quickly converted into that. Fortunately the tripod mount interface was Gitzo 5-compatible. So I simply set into SJ CF tripod. That’s very user-friendly.

This mount will be available through Astro Hutech shortly. US$2,129.00

With SJ 18 x 80 binoculars

This top-mounted kit is carefully considered and designed to maximize the stability. I’m sure this final unit was achieved after a lot of try-n-error processes in long time. I’d like to applaud to their great efforts.

As expected, this setup is very solid. Perfect for Binoscope application, and most likely very comfortable for the planetary viewing/imaging thru the Newtonian telescopes too.

Since the mount was set upside down, I was curious how cables are connected to the mount. The original panel is behind the mount plate. So not easy to access to each port.

I realized another set of ports are available at the side. Well designed!

I am really impressed with the mechanical design and quality.

As purely my personal opinion, this is the most suitable strain wave gear mount just to myself among others in the market since I’m a big fan for binoscopes.

The mount comes with the well-made padded bag. Nice!

When I will get familiar with this mount, the following my loverly BORG 107FL Bino should be switched onto this new mount one day.

The mount is still allowed to convert back into the regular EQ mode. It should give us very good valu