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Vintage lens


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Helli eveyone.

Despite reading the forum a lot in the last weeks, it's the first time I post.

I'm a beginner in astronomy/astrofography and after collecting some advices here i  kind have a plan about the setup I want in the future. But for now, i want to buy some  lenses to use with my canon 700d and get more astrofography feeling. With that said, I would like to know which lenses you guys  advise me. I was thinking about a Canon 50mm 1.8 that second hand costs about 90 euros, but then I saw the vintage lenses in Ebay, which are more affordable ,so i was thinking about a 135mm or even 200mm, or maybe one of these and also a 50mm vintage. Oh, as they are m42 mount, will all of them work with a m42 to eos adaptor i might have problem to focus with different lenght ?

Thanks in advance

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hi. ive a bunch of vintage lenses for my 6d ive got off ebay. all have been fine reaching infinity with m42 to eos adapter.

some have been sharp with stars, some are terrible. its a case kf just getti g some cheap and trying. takamurs are held up as good (my 200 is).  but i have others which work great for daylight photos, but terrible star shapes.

stu

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You can pick them up cheap so worth ago, I paid as little as £25 for one. I've tried the 28mm, 50mm, 135mm and 200mm Pentax Takumars but you have to stop them down and they suit crop sensors better in my experience so you should be ok with the 700d. You get what you pay for though but the're not to bad. 

Edited by Rustang
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I will definitely give it a try.  The takumar ones and carl zeiss seens to be the most expensive ones ( and probably good), all the "ok" prices has some kinde of flaw like fungus or haze. Maybe iam not looking properly hehe. Also , there are other brands like tokina, pentacon and the ussr jupiter that are not that expensive, but looks decent!

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If its cheap enough, give it a whirl, they will be better if coated though (SMC on the Pentax Takumars stands for Super Multi Coated) and an apature of f2.8 - f1.8 to start with because I would imagine you will still need to stop down to F4 - f5. 6 with any cheap lens. Buy well enough second hand and you should make your money back anyway so it won't matter if its a slightly more expensive lens. 

Edited by Rustang
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I've just spent night shooting with a cheap 28mm vintage on an asi533.

Even stopped down its not one for star peepers but I think it should still be decent, watch imaging dso forum for results today or tomorrow.

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They won't win any awards but these were all taken with old lenses, mostly Pentax Takumar's and a Hoya 28mm. It should give you a rough idea of what to expect. Filters will really help ( i.e light pulltion) a couple of these were taken with the L - enhance. You will also certainly need good flat frames as these images were a nightmare to process because I didnt!

snapseed-35.jpeg

snapseed-38.jpeg

snapseed-39.jpeg

snapseed-36.jpeg

snapseed-37.jpeg

Edited by Rustang
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Hi

We regularly use the Takumar 55, Zeiss mc-s 135, Takumar 200 and the Tair 3, the latter, a 70mm f4.5 triplet, producing near telescope quality. All are available around €100. They were designed to cover full frame, so there is an excellent flat field on a 700d.

You'll need an eos to m42 adapter. We'd recommend an adjustable one and either cut the auto pin in the lens or file a notch in the flange on the adapter.

Cheers and HTH

t55.jpg.99bca942baf1e4b5c029552f424c4b7e.jpg

z1.thumb.jpg.01813d1c780eff8eb63084b1a1eb467a.jpg

 

t1.thumb.jpg.63ef544ea94c3759c728369de22c411f.jpg

 

tair.thumb.jpg.4813b39e31e03ce4449a46a6c740356e.jpg

Edited by alacant
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Thank you guys for the answer so far. 

@Rustang @alacant stunning images , congratulations. Its way more than I expected, of course there are more factors than the lens, but yeah its amazing. 

I will keep looking for some good deal on the ones you guys mentioned. Thanks again 

 

Cheers

 

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Posting this here, as it's too bad for anywhere else!

This is the results from my 18 quid 28mm vintage job - stopped down 3 stops.

don't look at the stars if you have a nervous disposition.

However, I attach the unedited stack underneath.. so you can see how bad it was before affinity photo work.

Needless to say, that lens will not be used again for astro ! (it's great for video work, etc with the 6d though).

Also, note that I neglected the need for a lens shield to shield from moon reflections!!

orion_28mm.thumb.jpg.e90d880eaaa0993e5020e5762a1b2369.jpg

 

 

the raw stacked shot:

orion_300s.rawstacked.thumb.jpg.fe1162352e24f6192961ccccfbd4ee9f.jpg

 

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13 hours ago, powerlord said:

Posting this here, as it's too bad for anywhere else!

This is the results from my 18 quid 28mm vintage job - stopped down 3 stops.

don't look at the stars if you have a nervous disposition.

However, I attach the unedited stack underneath.. so you can see how bad it was before affinity photo work.

Needless to say, that lens will not be used again for astro ! (it's great for video work, etc with the 6d though).

Also, note that I neglected the need for a lens shield to shield from moon reflections!!

orion_28mm.thumb.jpg.e90d880eaaa0993e5020e5762a1b2369.jpg

 

 

the raw stacked shot:

orion_300s.rawstacked.thumb.jpg.fe1162352e24f6192961ccccfbd4ee9f.jpg

 

Its definitely trial and error with these old lens but you can get them to work ok but also be realistic with what the results are going to be like. I just really need to find away to get flats to work as so far they just dont! 

Edited by Rustang
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4 hours ago, powerlord said:

oh ? i used flats above ok. No different from other otas. waht issues are you having ?

I know how to take them they just never appear to work! Had some good advice again recently in regards to flats, tried it, still didn't work. I need to have a play around, see what I can do, maybe it's the Led panel. 

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  • 2 months later...

So a while back I bought a Takumar 200mm/F4 lens to get the ball rolling with some astrophotography.  Took me a while to cobble together the bits and pieces and have clear skies, but last night it was pretty clear and a it up in the upstairs room and pointed it what I thought was Vega (turned out I missed the mark completely and nailed NGC 6606 bang on initially (thank you plate solving).

Loads of fun.  Got to play with the intervalometer, try and find my target manually, muck about with exposure and focus.  Even got a quick test with the bahtinov mask (looks to be reasonably in focus, but it is hard on the infinity stop so might need to adjust as I'm not quite convinced it was bang).

I wouldn't call it a real run it was purely to assess how bad the chromatic aberration was.  Exposure was limited to 1.3sec per sub as it was unguided for a whopping total of 27.3 seconds of data untracked.  All in all I'm impressed and it was lots of fun!  Lens was stepped down to F5.6 as apparently this is where the chromatic aberration is minimised.  ISO 6400 because I forgot to dial it back after checking focus.

There is some weird diagonal banding which is probably because I did no flat, darks or bias images (one thing at a time)...

In the below image you can see the final processed data from Siril, top left (from the NGC 6606 session) and top right (from the Vega session) are a couple of (I think) Lyriads since the direction looks correct and I can't see any satellites about that time on Stellarium.  Middle image is a crop of the bahtinov mask focus (Wife made it for me on her cricut from thick card).

All in all, I'm delighted.  A very sensible use of £45 for the lens!  If it is clear tonight I might try again for more data

vega small.jpg

Edited by Ratlet
include the iso and correct spelling
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