7 replies to this topic

[otocycle]

The Astronomik Ha 12nm CCD clip filter has given new life to the old M42 lenses I have lying around.    I wanted to see how the 300mm f/4 Pentax Super-Takumar would perform in Ha and it looks promising.   Disregarding the noise, I jacked the unmodified Canon T6i's ISO to speed things up, and the North America Nebula / Pelican just jumped right out.

 

This is about 37 minutes total with 5 darks.   Piggyback on AG8/Orion Atlas EQ-G with PHD2 guiding.

 

Nice break from planet season !

 

 

Edited by otocycle, 12 July 2018 - 05:37 AM.

[aneeg]

Very nice, indeed. Makes me want to try my old Takumars of 200, 400 and 500mm lenses.

 

Arne

[SandyHouTex]

The Astronomik Ha 12nm CCD clip filter has given new life to the old M42 lenses I have lying around.    I wanted to see how the 300mm f/4 Pentax Super-Takumar would perform in Ha and it looks promising.   Disregarding the noise, I jacked the unmodified Canon T6i's ISO to speed things up, and the North America Nebula / Pelican just jumped right out.

 

This is about 37 minutes total with 5 darks.   Piggyback on AG8/Orion Atlas EQ-G with PHD2 guiding.

 

Nice break from planet season !

 

 

NGC_7000_300MM_T6I_Ha.jpg

Good to know.  I purchased the same lens awhile back and haven't had a chance to use it.  Great pic.

[otocycle]

Very nice, indeed. Makes me want to try my old Takumars of 200, 400 and 500mm lenses.

 

 

Thanks....I also have the 200mm f/4 Super Takumar....still looking for that big 500mm ebay bargain.    These prime lenses focus a little bit shorter in Ha, but stay pretty good right to the edge of the APS sized sensor.

[SandyHouTex]

Thanks....I also have the 200mm f/4 Super Takumar....still looking for that big 500mm ebay bargain.    These prime lenses focus a little bit shorter in Ha, but stay pretty good right to the edge of the APS sized sensor.

The 500mm would be great, but they’re expensive.

[aneeg]

I found mine on eBay and paid $180!

 

Arne

[Alone_Ghost]

not bad!

[Kendahl]

I'm going to the Nebraska Star Party next month and hope to capture this and the Veil Nebula.

 

What were your ISO and subexposure duration? Did you have the lens all the way open to f/4?

 

My camera is an unmodified Canon T3i. Will it capture these nebulae as is or do I need a filter or a modified camera?

 

I see you used an Ha filter attached directly to the camera sensor. My wife has a 2" Astronomik UHC filter which I could borrow and screw into my 2" camera adapter (https://agenaastro.c...-canon-eos.html). Will that work?