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Mitakon MC 85mm F2 Made in China
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PostPosted: Wed Jul 21, 2010 3:22 pm    Post subject: Reply with quote

Sorry, I'm not good at English, but I gonna try my best.

the optical part looks the same with Carl Zeiss Sonnar T* 85/2, 6/6 formula. I post a picture to show how the formula looks like.



PostPosted: Wed Jul 21, 2010 3:40 pm    Post subject: Reply with quote

the formula on the box is a kind of graphic design, it's not the formula of this lens.

Designers say that cemented groups may cause some problems. for this lens, flare are under control becouse of the multi coatings.


PostPosted: Thu Jul 22, 2010 12:47 am    Post subject: Reply with quote

Romil wrote:
Sorry, I'm not good at English, but I gonna try my best.

the optical part looks the same with Carl Zeiss Sonnar T* 85/2, 6/6 formula. I post a picture to show how the formula looks like.



I see what you mean. This "Sonnar" is actually double-Gouss, or Planar design. The "Sonnar" part is just a trademark, which is misused here I believe. Thus the Mitakon lens is actually a classic double-Gauss, Planar type design.


PostPosted: Sun Jul 25, 2010 3:07 pm    Post subject: Reply with quote

i did a brief 100% crop comparison of 3 lenses.

100% crop Helios 44-2


100% crop Mitakon 85mm F2


100% crop Tamron 17-50mm F2.8


PostPosted: Sun Jul 25, 2010 3:37 pm    Post subject: Reply with quote

jren wrote:
i did a brief 100% crop comparison of 3 lenses.

100% crop Helios 44-2


100% crop Mitakon 85mm F2


100% crop Tamron 17-50mm F2.8

Welcome! Thanks you for your comparison.


PostPosted: Sun Jul 25, 2010 10:09 pm    Post subject: Reply with quote

I guess it is only PK-mount for Pentax, not PK-A?


PostPosted: Mon Jul 26, 2010 12:42 am    Post subject: Reply with quote

aoleg: Have you had time to take some test shots? It seems to me that the Jupiter 9 is a good lens to compare with at price point and f/2.


PostPosted: Mon Jul 26, 2010 2:42 am    Post subject: Reply with quote

woodrim wrote:
aoleg: Have you had time to take some test shots? It seems to me that the Jupiter 9 is a good lens to compare with at price point and f/2.


Didn't go out with it yet, can only post a few test (meaning: test) shots. Click for larger size. 2nd image demonstrates field curvature. All three taken wide open. It's still evident that the lens is quite soft wide open, but has nice contrast and colors (and huge field curvature).

Compared to Jupiter-9, the Jupiter retains more fine detail wide open (meaning higher spatial resolution), while the Mitakon has much higher contrast. Field curvature is much better controlled with the Jupiter, too. Bokeh is subjective; it's more predictable (and smoother) with the Mitakon.





PostPosted: Tue Jul 27, 2010 9:25 am    Post subject: Reply with quote

Thank you Aoleg. Huh, huh, it's so hard to find positive sides based on samples. When you manage please take it out for a walk.


PostPosted: Tue Jul 27, 2010 10:01 am    Post subject: Reply with quote

8310 wrote:
I guess it is only PK-mount for Pentax, not PK-A?


Just did some research myself and apparently it actually is PK-A. Besides, there seems to be a silver version availiable. Very Happy

http://www.cnpentax.com/thread-1484-1-1.html


PostPosted: Tue Jul 27, 2010 10:45 am    Post subject: Reply with quote

8310 wrote:
8310 wrote:
I guess it is only PK-mount for Pentax, not PK-A?


Just did some research myself and apparently it actually is PK-A. Besides, there seems to be a silver version availiable. Very Happy

http://www.cnpentax.com/thread-1484-1-1.html

The silver version is the pre-order version.


PostPosted: Sun Aug 01, 2010 6:06 am    Post subject: Reply with quote

I'd like to see a portrait with the lens. I would bet that is what most people by fast 85's for. Some of that softness wide open might actually be a good thing.


PostPosted: Mon Aug 02, 2010 6:42 am    Post subject: Reply with quote

tkbslc wrote:
I'd like to see a portrait with the lens. I would bet that is what most people by fast 85's for. Some of that softness wide open might actually be a good thing.


Will do and post one... I promise...


PostPosted: Sun Aug 22, 2010 3:33 pm    Post subject: Reply with quote

hi, folks. I'm sorry that I was too busy these days to post some pics for you. I will post them here this week.

And now, a new product is coming out, Mitakon 35mm F2.0 made in China.
I gonna post some pics by this lens today.

All pics are wide open F2.0 test.

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PostPosted: Sun Aug 22, 2010 3:38 pm    Post subject: Reply with quote

100%


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PostPosted: Sun Aug 22, 2010 3:42 pm    Post subject: Reply with quote

This lens will be a 1:1 micro lens.
Go on with wide open, F2.0

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PostPosted: Sun Aug 22, 2010 3:48 pm    Post subject: Reply with quote

Other scenes test.

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PostPosted: Sun Aug 22, 2010 3:55 pm    Post subject: Reply with quote

All those pics have been adjusted by Photoshop.
I will provide machine-direct .jpgs if anybody would like to see.

and Mitakon Optics Company will provide all products worldwide via ebay.

I'm going to hold a worldwide-group-buy, and maybe could provide silver version products.


PostPosted: Sun Aug 22, 2010 4:06 pm    Post subject: Reply with quote

Romil wrote:
All those pics have been adjusted by Photoshop.
I will provide machine-direct .jpgs if anybody would like to see.

and Mitakon Optics Company will provide all products worldwide via ebay.

I'm going to hold a worldwide-group-buy, and maybe could provide silver version products.

Thank you Romil for bringing these lenses to all the people over the world.

Please let us know when the silver pre-order version of this lens is avaliable. I will definitely want to buy one. Wink


PostPosted: Mon Aug 23, 2010 1:57 am    Post subject: Reply with quote

Hmm, your sample seems quite a bit sharper than mine. QC variation or Mitakon has improved the performance of this lens?


PostPosted: Mon Aug 23, 2010 4:23 am    Post subject: Reply with quote

These samples are shot by Mitakon 35/2, not 85/2. but the 85/2 lens is more sharper than this lens at wide-open.

I will post some samples shot by 85/2 this evening for you. I can also provide machine-direct jpgs to you if you want to see.


PostPosted: Mon Aug 23, 2010 5:56 am    Post subject: Reply with quote

Romil wrote:
I will post some samples shot by 85/2 this evening for you. I can also provide machine-direct jpgs to you if you want to see.


Please do, that's appreciated!


PostPosted: Fri Sep 03, 2010 12:39 pm    Post subject: Reply with quote

Eagerly waiting for more 2/85mm samples Romil.


PostPosted: Fri Sep 03, 2010 12:49 pm    Post subject: Reply with quote

I'm also looking forward to the samples. Might be interested in a copy of both, especially if they are silver and the price is right! Can't see any on ebay yet.


PostPosted: Sat Sep 04, 2010 10:42 am    Post subject: Reply with quote

Romil wrote:
These samples are shot by Mitakon 35/2, not 85/2.

35mm f2? Could you show a photo of the lens? Where can I find some info about it?
Thanks