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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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 Posted: Thu Jul 13, 2017 6:21 pm Post subject: Samyang 8mm/F3.5 Fish-Eye CS Aspherical |
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tb_a wrote:
Based on recent discussion about fish-eye lenses I realized that I have this lens sitting in a box and never used up to now...
I've bought it some years ago for my Pentax K20D and it's in PK-mount. The lens is designed for APS-C format only.
So I took it today on my dog walk and made some shots.
As usual pictures taken with my Ricoh GXR-M in RAW and converted/resized with minor adjustments in LR6.
All pictured taken at F8 and distance was set to 1ft/0.3m for all. No need to care about focus with this lens.
#1
#2
#3
#4
100% crop of #4
For further reading Ken Rockwell did a quite interesting review of this lens here:
http://www.kenrockwell.com/tech/8mm-f35.htm
IMHO it's not a every day lens but at least you can get some interesting perspectives and the quality isn't bad at all.
Cheers,
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Thu Jul 13, 2017 7:10 pm Post subject: |
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luisalegria wrote:
Thanks!
The Rockwell review is certainly enthusiastic.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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blotafton
Joined: 08 Aug 2013
Posts: 1554
Location: Sweden
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| Posted: Thu Jul 13, 2017 7:13 pm Post subject: |
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blotafton wrote:
Looks good, and sharp! |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15685
Expire: 2014-01-07
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| Posted: Thu Jul 13, 2017 7:17 pm Post subject: |
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iangreenhalgh1 wrote:
Interesting, it's got a lot more distortion than my adapted projector lens but also much better edges.
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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visualopsins
Joined: 05 Mar 2009
Posts: 10540
Location: California
Expire: 2025-04-11
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| Posted: Thu Jul 13, 2017 10:36 pm Post subject: |
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visualopsins wrote:
| iangreenhalgh1 wrote: |
| Interesting, it's got a lot more distortion than my adapted projector lens but also much better edges. |
Could be edges not in focus due to field curvature? (edges not included in dof?)
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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)
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dnas
Joined: 14 Nov 2008
Posts: 488
Location: Japan
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| Posted: Thu Jul 13, 2017 10:46 pm Post subject: |
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dnas wrote:
I have had this lens for a long time and it's very good, comparable to the performance of similar Nikon and Canon lenses, but at half the price.
The Photozone review is more balanced than Ken R. |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15685
Expire: 2014-01-07
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| Posted: Fri Jul 14, 2017 12:22 am Post subject: |
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iangreenhalgh1 wrote:
| visualopsins wrote: |
| iangreenhalgh1 wrote: |
| Interesting, it's got a lot more distortion than my adapted projector lens but also much better edges. |
Could be edges not in focus due to field curvature? (edges not included in dof?) |
The DLP chip in the projector was about the size of a Nikon CX 1" sensor, so using the lens on a M4/3 camera is using more of the image circle than was intended. Within the image circle of the DLP chip, it's sharp and distortionless, it's only the outer part of the image circle, outside the area the projector used, that has any smeariness, so I think you are right, it will be field curvature.
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I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Fri Mar 13, 2020 9:45 am Post subject: |
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tb_a wrote:
Landscape with the 8mm lens on Pentax K20D (lens profile applied in Lightroom):
For comparison this was done with the SMC Pentax DA 55-300mm/F4-5.8 at 300mm from similar viewpoint:
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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kds315*
Joined: 12 Mar 2008
Posts: 16544
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Fri Mar 13, 2020 9:56 am Post subject: |
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kds315* wrote:
 nice Thomas!
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Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
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Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Fri Mar 13, 2020 8:47 pm Post subject: |
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tb_a wrote:
| kds315* wrote: |
| nice Thomas! |
Thank you, Klaus.
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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Oldhand
Joined: 01 Apr 2013
Posts: 6009
Location: Mid North Coast NSW - Australia
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| Posted: Sat Mar 14, 2020 3:36 am Post subject: |
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Oldhand wrote:
Very nice Thomas.
This lens is great for wide interior shots as well.
If you do not mind me adding a couple, here they are - also on APSc - Fujifilm
Again the forum has softened them. Click for a larger version to see their correct sharpness
Tom
#1
#2
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Sat Mar 14, 2020 8:49 am Post subject: |
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tb_a wrote:
Tom, it's indeed a great and versatile lens for many purposes. With the Lightroom lens profile applied the typical fish-eye curvatures are eliminated with a single click.
Thanks for posting your examples. Nicely done.
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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philslizzy
Joined: 07 Aug 2012
Posts: 4748
Location: Cheshire, England
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| Posted: Sun Mar 15, 2020 1:00 pm Post subject: |
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philslizzy wrote:
I have one of these which I'm very happy with. I struggle to remove curvature completely. The LR profile works a treat. Is this something I can download?
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kansalliskala
Joined: 19 Jul 2007
Posts: 5028
Location: Southern Finland countryside
Expire: 2016-12-30
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| Posted: Sun Mar 15, 2020 1:20 pm Post subject: |
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kansalliskala wrote:
| luisalegria wrote: |
Thanks!
The Rockwell review is certainly enthusiastic. |
| Quote: |
There is some gobbledygook in the manual about how to deal with the "release lock," whatever that may be.
The instructions list specifics for many models of Minolta and Sony cameras, but only with foreign model names and numbers. |
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MF: Kodak DCS SLR/c; Samsung NX10; OM-10; Canon T50
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Zuiko 50/1.4; S-M-C 120/2.8; Zuiko 135/3.5; 200/5;
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Tamron zooms: 01A, Z-210
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Museum stuff: Certo-Phot; Tele-Edixon 135; Polaris 90-190; Asahi Bellows; Ixus IIs
Projects: Agfa Isolette III (no shutter), Canon AE-1D (no sensor),
Nikon D80 (dead), The "Peace Camera"
AF: Canon, Tokina, Sigma Video: JVC GZ-MG275E |
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Sun Mar 15, 2020 1:47 pm Post subject: |
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tb_a wrote:
| philslizzy wrote: |
| I have one of these which I'm very happy with. I struggle to remove curvature completely. The LR profile works a treat. Is this something I can download? |
I'm still working with Lightroom 6.14 installed locally and the lens profile is already included and works fine for me.
Same is true for Adobe Camera Raw 10.5 in my copy of Photoshop 14.2.
I don't use the newer versions which are on permanent payment basis only.
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Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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