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View Full Version here: : Yay! New toys! (and some Eta Car images)


graphworlok
10-05-2011, 11:21 PM
So, last week my new toys arrived.. Pentax Super Takumar 135mm lense, M42-EOS adaptor, and an extra battery.. Then while visiting my mothers on sunday she had found a "camera bit" while cleaning - Turned out it was a 2x M42 thread teleconverter!

Then last night was suprisingly clear - Freezing, but clear.

I took the following pair of images after a quick (very quick) attept at drift aligning. There are 90 or so 30 second exposures (400, 800 and 1600 ISO) in the wider image, and about 20 for the image with the teleconverter

Darks, no flats or bias. Not bad for a $70 lense from ebay! (that came with a free broken 50mm lense)

The lense was hard up against the "infinity" stop - Seems to be in focus. It will make taking flats much easier, and the focuser ring is large - 3cm or so, and silky smooth. The whole Takumar lense is metal, and has a nice space to add a heater to it.

EQ3 mount, no guidescope.

ZeroID
11-05-2011, 09:18 PM
Hey James, not bad, not bad at all for a quick drift align. Stars are nice and round, good natural colour and good definition.
I used to have Takumar Lenses on a SLR some time ago and was always impressed by their accuity. Must watch out for a 135 prime on the local auction site, they pop up now and then.
What did you have the lens stopped down to ? I asK because there is no apparent coma out to the edges.

graphworlok
11-05-2011, 10:47 PM
Wide open - so 3.5

planet paul
28-05-2011, 07:16 AM
Nice pics. Did you use photoshop or something else to stack the pics

graphworlok
30-05-2011, 01:10 AM
Deep Sky Stacker, and gimp for resizing/jpg conversion. All level/etc adjustments were done in DSS