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std
Joined: 09 Feb 2010
Posts: 1826
Location: Bulgaria
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 Posted: Wed Nov 30, 2011 4:44 pm Post subject: 25mm 1.4 CCTV lens |
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std wrote:
Have anyone tried those 25mm 1.4 CCTV lenses on micro 4/3?
Click here to see on Ebay and Click here to see on Ebay
Any idea of the amount of vignetting?
I have one similar for 2/3" sensor but it seems smaller than those 2.
_________________
Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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bogolisk
Joined: 20 Dec 2009
Posts: 448
Expire: 2011-11-18
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| Posted: Wed Nov 30, 2011 6:56 pm Post subject: Re: 25mm 1.4 CCTV lens |
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bogolisk wrote:
| std wrote: |
Have anyone tried those 25mm 1.4 CCTV lenses on micro 4/3?
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a fair bit... not too bad if shoot 1:1 aspect ratio. I'm at work right now so I can't post any picture.
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When I try to be a photographer I manage to add an f to art. |
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std
Joined: 09 Feb 2010
Posts: 1826
Location: Bulgaria
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| Posted: Wed Nov 30, 2011 7:30 pm Post subject: |
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std wrote:
 thanks
Please post one when you have time.
It will be interesting to see if it vignettes as heavy as the 2/3" version.
I 'm not expecting miracles from this toy lens - it will be just for fun.
_________________
Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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ForenSeil
Joined: 15 Apr 2011
Posts: 2726
Location: Kiel, Germany.
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| Posted: Wed Nov 30, 2011 8:50 pm Post subject: |
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ForenSeil wrote:
I own this lens.
It's a C-Mount lens so I guess it's the wrong area in this forum. (--> Cine Lenses)
I'm only able to test it on NEX-3 (1.5 crop sensor), as I dont's have a MFT camera etc.
It shows strong vignetting and distortion on 1.5 crop sensor
More or less sharp in the center wide open.
Stopped down to 5.6 or 8:
I think it will be the counter-part to the 35mm F1.7 on NEX in vignetting.
Look http://forum.mflenses.com/sensor-sizes-superimposed-on-aps-c-image-take-with-12-5mm-c-t44931.html for cpmparision of NEX with MFT
I never used it for a "real pictures" as vignetting is to strong for my taste and I'm to lazy to crop the edges.
I have also the 35mm 1.7 made by Fujian which does cover the sensor much better and makes a lot fun on NEX and I guess also on MFT.
Look at http://forum.mflenses.com/fujian-35mm-f-1-7-t37181.html for information about it's 35mm 1.7 sister.
_________________
I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language)
Last edited by ForenSeil on Fri Dec 02, 2011 8:53 pm; edited 1 time in total |
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bogolisk
Joined: 20 Dec 2009
Posts: 448
Expire: 2011-11-18
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| Posted: Thu Dec 01, 2011 3:30 pm Post subject: |
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bogolisk wrote:
| std wrote: |
thanks
Please post one when you have time.
It will be interesting to see if it vignettes as heavy as the 2/3" version.
I 'm not expecting miracles from this toy lens - it will be just for fun. |
I took it out and found that it no longer works! (can't focus anymore) 
As far as I remember, the shadow in the corners get darker and darker until you hit f8. At f8 the corners are literally black. It's no where as severe as on aps-c (nex) but the vignette was there and noticeable.
Edit: ok silly me, I got the lens working now.
at f/2.8
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When I try to be a photographer I manage to add an f to art. |
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std
Joined: 09 Feb 2010
Posts: 1826
Location: Bulgaria
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| Posted: Thu Dec 01, 2011 9:12 pm Post subject: |
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std wrote:
Thank you - It does look nice.
Well you have the swirls but still it's not very bad.
Maybe i will give it a try until i find a reasonably priced 25mm f1.4 Leica DG Summilux.
I have missed the black friday bargain from Panasonic's website until i sort my paypal troubles.
_________________
Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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