Pentacon Auto 4/200 MC pics with FF

RSalles

Gens,

Reading and replying for Ferrick's Meyer-Optik Goerlitz Orestegor thread today made me clean the dust of my Penacon 200mm and get out to make some exercises of bokeh-building Very Happy

What i found was a moment (a thin slice of time of the day) exactly when i left home with a light perfect for the task.

1)

PRF2013-3160 por Renato Augusto Salles, no Flickr

2)

PRF2013-3169 por Renato Augusto Salles, no Flickr

3)

PRF2013-3171 por Renato Augusto Salles, no Flickr

4)

PRF2013-3173 por Renato Augusto Salles, no Flickr

Hope you like it as i do,

Cheers,

Renato

ferrick · Joined: 20 Apr 2012 Posts: 643 Location: Hong Kong

Oldhand · Posted: Fri Apr 26, 2013 7:49 am Post subject:

Beautiful images Renato.
Is this lens the latest version with multi coating?
Any chance you could post a picture of the lens itself.
Many thanks
OH

nurkov · Expire: 2014-03-09

wonderful colors and bokeh

RSalles · Posted: Fri Apr 26, 2013 7:05 pm Post subject:

Thanks Ferrick, Oldhand and Nurkov for your gently words, as soon as I can I'll photograph the lens and post the photo at this thread,

Best regards,

Renato

GeorgeSalt · Joined: 09 Feb 2013 Posts: 336 Location: Norfolk, UK

Beautiful shots.

I have the older non-auto Pentacon version. It will be interesting to compare all the variations from the Meyer through the later Pentacon versions.

RSalles · Posted: Sat Apr 27, 2013 10:37 pm Post subject:

Oldhand · Posted: Sat Apr 27, 2013 10:49 pm Post subject:

Oldhand · Posted: Wed Jul 17, 2013 8:07 am Post subject:

This image is for Renato.
Taken with Pentacon auto 200/4.
1/500s @ f8 on Pentax K10
First grevillia of the season as the days here begin to warm again.
OH

RSalles · Posted: Wed Jul 17, 2013 1:52 pm Post subject:

OH,

Thank you, that's a nice pic. It seems you have a good copy of this lens too.
Glad to know warmth is arriving at your country, here we have now rain, and cold. ugh!

Cheers,

Renato

Attila · Expire: 2021-11-18

Beautiful images , nice to see 'orphan' lens in great action ! Congrats!

pandreas68 · Joined: 24 Jan 2020 Posts: 63

Hi,
I used my Pentacon 4/200 Auto MC today. Two pics for here to share:

Isar river

Electric tower with a little sun worshopper on the top

According to Marco Kroeger the optical design of the Pentacon 4/200 Auto was in 1979 the last really new design of ex Meyer Optics in Goerlitz with only very little CAs. This I wanted to proove with my shots and it seems right.
It may have been produced in Romania. So even in German Democratic Republic they've had an outsourcing.

Gott23 · Joined: 10 Dec 2018 Posts: 250

pandreas68 · Joined: 24 Jan 2020 Posts: 63

Hi,

according to the threads title "Pentacon Auto 4/200 MC pics with FF" and the optical formula respectively design I only wanted to indicate, that the Pentacon 4/200's optical formula is different from the Pentacon Auto 4/200 MC's optical formula.

Remaining part of my post deleted due to offtopic nonsense!-)

Indigo82 · Joined: 30 Dec 2018 Posts: 26

Pentacon MC Auto 200mm f4 with 6 bladed aperture on full frame Pentax K-1

pandreas68 · Joined: 24 Jan 2020 Posts: 63

A kind of an old thread now, but maybe somebody reads...

Indigo82, I wonder about the sharpness in the last pic of those you posted on Feb 17 2020. Is it good even in the very distant areas? I used my copy the last days and noticed some problems. Maybe I will come back on this and upload some pictures.

Indigo82 · Joined: 30 Dec 2018 Posts: 26

Phalbert · Joined: 17 May 2009 Posts: 156 Location: Namibia

[quote="pandreas68"]A kind of an old thread now, but maybe somebody reads...

Yes we do. Like 1 small

And now I went to dig out my copy out of the scrap box... shame.

pandreas68 · Joined: 24 Jan 2020 Posts: 63

My problem was about the defth of field scale.

When I focussed at the most distant point and turned this position to the f-stop on the defth of field scale the most distant point in the picture was not sharp anymore. The reason is that the defth of field scale of the Pentacon 4/200 Auto is calculated to an Circle of Confusion diameter of approximately 0.05mm rather than 0.029mm. Setting an f-stop 16 at the aperture but using f-stop 8 on the depth of field scale works:

Picture (downscaled)

Center 100% crop at 24MPx resolution

Speed limit 100% crop at 24MPx resolution

Pictures are taken as they came out from my Sony Alpha II (no sharpening, only scale and crop)

Setting is done in that way:

First look look for most distant point

Then move it to the f-stop value on the defth of field scale and stop down. Actually I used 16 to stop down and 8 to turn on, not 11.

Some may wonder why to use the defth of field scale on a tele. In theory the depth of field should rely from the reproduction scale and actually not of the lens used. So why not to use it on a tele as long as reproduction scale is small enough.

pandreas68 · Joined: 24 Jan 2020 Posts: 63

Another thing I noticed with my copy of the Pentacon 4/200 Auto MC is a lets say interesting spot style bokeh:

Which also may somehow aggregate to a kind of fog. In this case there were tiny drops of water with some light in.

Sometimes bokeh is maybe a little to busy if the the background is to busy

But in many cases it is also fine for my taste

Though I still need to learn how to use it I hope I can motivate you to use your copies and share some pictures!-)

Indigo82 · Joined: 30 Dec 2018 Posts: 26

Some more photos with m42 Pentacon MC 200mm f4

pandreas68 · Joined: 24 Jan 2020 Posts: 63

visualopsins · Expire: 2021-06-22

The question is How much less magnification is necessary to enlarge 24mp image to normal print size as, say, image from 8mp sensor -- and, is the depth-of-field in the two prints identical? (The coc of 24mp is smaller but gets enlarged less)

Indigo82 · Joined: 30 Dec 2018 Posts: 26

pandreas68 · Joined: 24 Jan 2020 Posts: 63

Thanks Indigo! I try to remember to take some distance rings with me next time...