Search found 82 matches

by brenski
Mon Nov 27, 2023 11:03 pm
Forum: Deep Sky Imaging
Topic: Excessive Star Glow
Replies: 9
Views: 3200

Re: Excessive Star Glow

thanks @menno & @Turpfit

My Tak> Altair chain is

Tak 300mm > Ef/M42 ring > EF/Altair adapter (see top post) > Altair 183C

thanks for the advice, will stop down from F/4 to F/5.6 and try again
by brenski
Mon Nov 27, 2023 4:44 pm
Forum: Deep Sky Imaging
Topic: Excessive Star Glow
Replies: 9
Views: 3200

Re: Excessive Star Glow

I don't know if this is possible with this kind of lens, but it looks like a back focus issue? The way you describe it, it looks like the lens is a bit too close to the camera sensor. Menno i not sure about that. As i said in my top post: The bahtinov pattern appeared spot-on. it can't be a focus i...
by brenski
Mon Nov 27, 2023 10:16 am
Forum: Deep Sky Imaging
Topic: Excessive Star Glow
Replies: 9
Views: 3200

Re: Excessive Star Glow

thanks Tim The Tak 300 works manually with my Canon - and I have the Man/Auto switch set to "Man" so adjusting the Aperture settings does appear to work when attached to the Altair camera. My Altair 183c has a Built-in UV/IR filter - so would that mean that no additional filter req'd? From...
by brenski
Sun Nov 26, 2023 3:02 pm
Forum: Deep Sky Imaging
Topic: Excessive Star Glow
Replies: 9
Views: 3200

Excessive Star Glow

This is just a quick question on focusing. Equipment: Super Takumar 300mm, Altair 183c (Cooled) & Altair Hypercam Lens Adapter The Sharpcap captures are from upper-centre frame, 30-sec exposures. The bahtinov pattern appeared spot-on. However, all of the stars in the image have a bright centre a...
by brenski
Tue Nov 21, 2023 12:53 pm
Forum: Altair Cameras
Topic: Hypercam 183c [fan cooled] cable query
Replies: 5
Views: 4589

Re: Hypercam 183c [fan cooled] cable query

Hi Richard

Coincidentally, that's exactly what I tried the other night! - and it works fine


Martin
by brenski
Mon Oct 16, 2023 12:59 pm
Forum: How do I?
Topic: m42 > Altair 183c [cooled]
Replies: 2
Views: 3399

m42 > Altair 183c [cooled]

Hi

Just wondering if I can link my Takumar lens to the Altair 183c to capture in Sharpcap

♦ Altair 183c > Takumar SMC 300mm F/4 [M42]

1. Can it be done? what adapter is required?
2. What about backfocus?

thanks
by brenski
Thu Aug 10, 2023 9:47 am
Forum: Other Astro Imaging
Topic: Perseids Stacking?
Replies: 1
Views: 3719

Perseids Stacking?

Does anyone know of a simple method for stacking Meteor showers that were captured using a tracked mount?

I can't find a method for this for either DSS or Sequator

Is it possible, if so what would be the workflow?



thanks
by brenski
Sat Jul 29, 2023 8:14 am
Forum: Altair Cameras
Topic: Hypercam 183c [fan cooled] cable query
Replies: 5
Views: 4589

Re: Hypercam 183c [fan cooled] USB Cable Fix

just an update to this: for anyone with similar issues, this was my fix: 1] Lindy 10m active usb extn with 5v connector   https://www.amazon.co.uk/LINDY-10m-Active-Extension-Cable/dp/B00B9G4AZ0?th=1 2] USB Type-A Male to 3.5 x 1.35mm DC 5V 1A Plug Barrel Connector  https://www.amazon.co.uk/gp/produc...
by brenski
Tue Jul 25, 2023 1:48 pm
Forum: Altair Cameras
Topic: Hypercam 183c [fan cooled] cable query
Replies: 5
Views: 4589

Re: Hypercam 183c [fan cooled] cable query

Hi Robin thanks for the reply. putting the PC outside is not going to be practical. The active 10m cable has been used with the Zwo and SVBony the mini-PC located in our garage to the imaging setup in the garden, As I said, these have been fine, but the Altair is really messing with my mind. I'll re...
by brenski
Tue Jul 25, 2023 1:29 pm
Forum: Altair Cameras
Topic: Hypercam 183c [fan cooled] cable query
Replies: 5
Views: 4589

Hypercam 183c [fan cooled] cable query

I'm a bit bemused by this one. Recently bought a Hypercam 183c [fan cooled] camera from Altair, however the USB lead I'm trying to use cuts out at random intervals. this is the one i currently use with my Zwo183mc and SVBony 205 without any issue at all https://www.amazon.co.uk/LINDY-43098-Active-Ca...