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alex ph
Joined: 16 Mar 2013
Posts: 1571
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 Posted: Mon Jul 29, 2019 5:03 pm Post subject: Benoist Berthiot Elliptar 1.8/105 freelensing |
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alex ph wrote:
Here are some quick test shots taken with this huge projection lens (more than 70mm in diameter). I haven't found any details about it online, so it might be rather rare, and for sure not easily adaptable.
Having no appropriate adapter I took the shots freelensing on Sony A7. This way tilt effects are unavoidable and the images do not speak justly about the lens sharpness. I am pretty impressed though with microcontrast delivered by such a fast glass. The bokeh is pleasing.
#1
#2
#3
#4 A 100% crop from an indoor shot. I should have raised ISO to get a better image shape, reserve that for the next time...
#5
As for the lens itself, pictures from this ended ebay auction of its close relative may give an idea. Please refer to the page bottom for other images, as they seem to be kept there and no more in the main place.
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vivaldibow
Joined: 23 Jun 2018
Posts: 837
Expire: 2021-03-09
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| Posted: Mon Jul 29, 2019 6:18 pm Post subject: Re: Benoist Berthiot Elliptar 1.8/105 freelensing |
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vivaldibow wrote:
Nice one. French glass. I got a projection lens recently as well and in the process of adapting it.
Last edited by vivaldibow on Mon Jul 29, 2019 6:45 pm; edited 1 time in total |
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visualopsins
Joined: 05 Mar 2009
Posts: 10541
Location: California
Expire: 2025-04-11
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| Posted: Mon Jul 29, 2019 6:24 pm Post subject: Re: Benoist Berthiot Elliptar 1.8/105 freelensing |
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visualopsins wrote:
| vivaldibow wrote: |
...
Nice one. French glass. I got a projection lens recently as well and in the process of adapting it. |
Tip: Click the Reply button instead of the quote link to avoid cluttering the thread with repeat of images.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
Last edited by visualopsins on Mon Jul 29, 2019 6:26 pm; edited 1 time in total |
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alex ph
Joined: 16 Mar 2013
Posts: 1571
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| Posted: Mon Jul 29, 2019 6:25 pm Post subject: |
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alex ph wrote:
Please, share your adaptation and test shots when you finish! That is always a fascinating matter. |
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jamaeolus
Joined: 19 Mar 2014
Posts: 2929
Location: Eugene
Expire: 2015-08-20
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| Posted: Mon Jul 29, 2019 6:38 pm Post subject: |
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jamaeolus wrote:
_________________
photos are moments frozen in time |
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vivaldibow
Joined: 23 Jun 2018
Posts: 837
Expire: 2021-03-09
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| Posted: Mon Jul 29, 2019 6:43 pm Post subject: Re: Benoist Berthiot Elliptar 1.8/105 freelensing |
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vivaldibow wrote:
| visualopsins wrote: |
Tip: Click the Reply button instead of the quote link to avoid cluttering the thread with repeat of images. |
Thanks. Will do. Actually I wish the reply button could be by the side of Quote button or there is an option to quote the text only. |
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vivaldibow
Joined: 23 Jun 2018
Posts: 837
Expire: 2021-03-09
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| Posted: Mon Jul 29, 2019 6:46 pm Post subject: |
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vivaldibow wrote:
| alex ph wrote: |
| Please, share your adaptation and test shots when you finish! That is always a fascinating matter. |
Waiting for a caliper to do some measurements. |
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alex ph
Joined: 16 Mar 2013
Posts: 1571
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| Posted: Mon Jul 29, 2019 9:06 pm Post subject: |
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alex ph wrote:
Good chance with measurements and adaptation! |
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