2 inch CLS and UHC Filters with Camera Lens's

Just a quick picture for now.

I've been using 2 inch CLS and UHC  filters to great effect with my 90mm Telescope.
I wanted to try a bit of wider field Astro again, but light pollution makes a mess of the results.
I decided to modify one of my M42 adaptors to accept one of the filters. This involved "boring" out the body of the adaptor, the filter being held in place by friction. The following was just a quick grab without much thought. I'm waiting for the weather to improve so I can try it at f 5.6 and test some of my other lenses. 

Taken with a Vintage CZJ 135mm f3.5  lens with Fuji XT1 camera Un-Cropped

Wide open at f 3.5. 30 sec exposure. stack of 18 images. stacked with Siril minimal post pro.
EQ5 mount not guided

ETA Carinae
 CZJ 135mm f 3.5  lens with Fuji XT 1 camera
Melbourne Australia Bortle 6

Southern Cross. Taken through Vintage  Fujifilm 55mm F1.8 lens at F4  30sec 17 stack
No Crop

Astrophotography. My Affordable Guided Setup

I tried to convince myself that I didn't need a guided setup. 
"My mounts periodic error isn't that great.. is it"
"I don't want a guide-scope and laptop and all that cabling"
"I only do short exposures anyway".

I was throwing away half of my "sub frames" due to star elongation, even at 30 secs.

So what to do. A quick look at the price of guide scopes and camera's, plus the mods needed to the controller was starting to put me off again.

let's see what I can get from Ebay. 

A "T7 Astro camera" clone of ZWO ASI120 Colour approx A$145.00
A Generic 50mm Guidescope Approx A$90.00

I had an old laptop runnings windows 10 
Downloaded "PHD" software.
Modified my "RA" motor controller so it could accept "ST4" guide signals.

Plug it all together... good to go.

Another advantage of using "PHD" software is its polar alignment tools which I now find indispensable. 
I also decided to try an "Orion Field Flattener" which works a treat. No more stretched stars in the corners.
My setup is starting to look serious.

By the way my mounts periodic error is actually pretty bad.

The Guide scope clamps easily in the finder bracket.
I use a laser pointer followed by a wide field eyepiece in the main scope as a finder.
When aligned, I pop the camera in and re-focus, and fine tune the framing.

Coarse, slide and Fine helical focusing, works a treat

Yes you can guide on RA only

Eta Carinae and Nebula NGC 3372

Approx 7,500 Light Years from Earth

Location: Kilcunda Beach Victoria 
Scope: Aquila 90mm f5.5 Achromatic Refractor
Filter: "SVBony" "CLS" Light Pollution

Imager: Fuji XT1 at Prime Focus. 2inch diameter extension tube through "T mount"

Mount: SkyWatcher EQ5 RA motor Drive only

Guided: Guide scope and PHD software through Modified RA controller

Stack of 17 x 90 sec asa 3200 Raw "subs"

Stacked using "SiriL"

 2-3-2019
No Field Flattener

Eta Carinae and Nebula NGC 3372

Approx 7,500 Light Years from Earth

Location: Melbourne Bortle 6
Scope: Aquila 90mm f5.5 Achromatic Refractor 
Orion Field Flattener
Filter: "SVBony" "CLS" Light Pollution

Imager: Fuji XT1 at Prime Focus. 

Mount: SkyWatcher EQ5 RA motor Drive only

Guided: Guide scope and PHD software through 
Modified RA controller

Stack of 45 x 90sec asa 6400 Raw "subs"

Stacked using "Lynkeos" 

 27-3-2019

Cropped and Rotated from Picture above
but different colour pallet 

M83 Southern Pinwheel Galaxy

15 Million Light Years Away

Location: Melbourne Bortle 6
Scope: Aquila 90mm f5.5 Achromatic Refractor 

Orion Field Flattener
Filter: "SVBony" "CLS" Light Pollution

Imager: Fuji XT1 at Prime Focus. 

Mount: SkyWatcher EQ5 RA motor Drive only

Guided: Guide scope and PHD software through 
Modified RA controller

Stack of 30 x 120sec asa 6400 Raw "subs"

M83 Southern Pinwheel Galaxy

15 Million Light Years Away

Cropped

Location: Melbourne Bortle 6
Scope: Aquila 90mm f5.5 Achromatic Refractor 

Orion Field Flattener
Filter: "SVBony" "CLS" Light Pollution

Imager: Fuji XT1 at Prime Focus. 

Mount: SkyWatcher EQ5 RA motor Drive only

Guided: Guide scope and PHD software through 
Modified RA controller

Stack of 30 x 120sec asa 6400 Raw "subs"

Astrophotography Aquila 90mm 500mm Refractor with SVBony CLS. Kilcunda Vic

Horse Head and Flame Nebulas

Location: Kilcunda Vic Australia
Scope: Aquila 90mm f5.5 Refractor
Filter: "SVBony" "CLS" Light Pollution

Imager: Fuji XT1 at Prime Focus 2inch diameter extension tube through "T mount"

Mount: SkyWatcher EQ5 RA motor Drive

Stack of 14 x 20 sec asa 6400 Raw "subs" 

Stacked using "Lynkeos"

 Post Processed in "GIMP" 

Orion and Running Man Nebulas

Distance from Earth: approx 1300 Light Years
Width: Approx 24 Light Years

Location: Kilcunda Vic Australia Scope: Aquila 90mm f5.5 Refractor
Filter: "SVBony" "CLS" Light Pollution

Imager: Fuji XT1 at Prime Focus 2inch diameter extension tube through "T mount"

Mount: SkyWatcher EQ5 RA motor Drive

Stack of 14 x 20 sec asa 6400 Raw "subs" 

Stacked using "Lynkeos"

 Post Processed in "GIMP" 1-1-2019