Tuesday, April 27, 2021

Konica Hexanon 135mm f3.5

I was dropping-off a roll of 35mm film for development  at one of the few remaining camera and photographic equipment shops left in Phoenix - Foto Forum and on my way out glanced into a display to see what they had for vintage lenses and used cameras.  I normally wouldn't even look because I pick up lenses at thrift stores, pawn shops and garage/estate sales for peanuts and I know at this shop I would be paying 'retail' knowing however they get lenses, they need to make a profit.  Anyway, I was stunned to find a deal: A 35mm Konica camera and three Konica lenses (28mm, 52mm and 135mm) for $50!  I jumped on it.

The lens featured here is the Konica Hexanon 135mm f3.5 lens with and aperture range of f3.5 to f16 with a serial number of 7323909. I struggled to find much detailed history of this lens, but it suggest the lens was from the early 1970's, made in Japan and was made for 35 mm SLR cameras with the Konica F system.  

There is a website that has a page with details (specs) of this lens and the other lenses in it's family.  Here: http://buhla.de/Foto/Konica/Objektive/e135_35.html

I attached a Konica-to-Samsung NX mount adapter and took the Samsung NX1 camera out with me for a walk to the post office to mail a package in downtown Phoenix.

A 135mm lens is a 202.5mm lens equivalent with the NX1's APS-C sensor.

All the photos below are out of the camera as JPEG's with no filters, effects, or film emulations in order to get the best imaging representation of the lens.  The aspect ratio was set at 3:2 and captured at the camera's full sensor resolution of 28MP.    I didn't document the camera setting for each image this time around.


Below is a close-up showing a detail of the building above.  This lens is nice and sharp and at close-up the detail is only lost in a fine-grain type of way.  I'm impressed.

Below, a detail in the above photograph of of the electrical pole. Again, impressive detail resolved in this lens and even considering the shot was hand-held

 


Saturday, May 2, 2020

Auto SEARS 50mm f2


This 50mm distributed by Sears, but is the same lens as the Ricoh P Rikenon 50mm F2.  The Aperture of this lens ranges from F2.0 to F16. It has a 6-blade diaphragm and a 5mm filter since.  My particular lens is in excellent condition, has a Pentax mount (easily adaptable to the NX1 with suitable lens adapter) and is stamped with S/N: 309399.

I will post some links to other online reviews and photos, but in general this is a sharp vintage lens at greater than f5.6 with good color saturation. Minimum focus distance is about 2ft.

The mount is metal with a plastic barrel; however the lens feels solid and focus adjustments are smooth.  This lens can be found online for around $15-$25 depending on condition.  For that price the lens if totally worth it.




All photos below were taken hand-held on a bright-sunny day.  No 'post' effects except that the 28MP photos were re-sized to 1920x1080.

Yellow flower is a Mariposa Lilly photographed in southern Arizona near the Mexican border.


 PIC52_f11_ISO200_1/500sec_EV-0.6

 PIC54_f8_ISO100_1/320sec_EV-0.3

PIC55_f8_ISO100_1/320sec_EV-0.3

PIC62_f5.6_ISO200_1/16000sec_EV-0.3

(Hedgehog Cactus Flower) f5.6_ISO200_1/1600sec_EV-0.3

 PIC58_f2.8_ISO100_1/320sec_EV-0.3

PIC62_f5.6_ISO200_1/16000sec_EV-0.3


Read more at on the AUTO SEARS 50mm f2 here:

https://www.pentaxforums.com/userreviews/sears-auto-50mm-f20.html

https://blog.bkspicture.com/review_Auto_Sears_50mm_f2.html

https://www.pentaxforums.com/userreviews/sears-auto-50mm-f20.html#ixzz6LKf2dbhA


Thursday, January 16, 2020

PROSPEC 28-200mm ZOOM f3.8-5.6 Test Photographs

This len a PROSPEC 28-200mm MC AUTO ZOOM  f3.8-5.6. It has a Nikon mount adapted to the Samsung NX1.  The focal range adjustment given the the NX1's APS-C sensor crop make this lens a 42-300mm equivalent.

The photos below are initial photographs for the purposes of examining the lens for its mechanical and optical properties. 

The photos in this set have not been altered and were shot handheld.


There is very little about PROSPEC lenses on the Internet, but I haven't researched too deeply yet.

125mm  f8  1/125s  -0.3EV  ISO100 



FL 90mm  f3.5  1/250s  -0.3EV  ISO100 


FL 50mm  f11  1/250s  -0.3EV  ISO200 

FL 50mm  f11  1/250s  -0.3EV  ISO200 






Tuesday, December 24, 2019

Initial photographs with a SIGMA 75-250mm f4-5

I discovered this SIGMA ZOOM 75-250mm f4-5 'multi-coated' lens at a pawn shop in Phoenix for $15. Research of SIGMA's production shows this lens to be of 1981-vintage.  With the only issue being a slightly 'sticky' axial barrel movement to zoom the lens mechanically and optically were in very good condition.

The photographs below are untouched initial images to get a first impression on the performance and operation of the lens.

The mount is Konica (KR) and it was secured to the NX1 with a KR-to-NX mount adapter.

My initial impressions of these first photographs were very positive for sharpness and I wasn't even using a tripod for  the 250mm images.

SIGMA ZOOM 75-250mm f4-5 [SN 913147]







Monday, September 16, 2019

Test drive...Zoom-NIKKOR 35-105mm f3.5-4.5 MACRO


First introduced in January, 1983 the Zoom-Nikkor 35-105mm f/3.5-4.5 MACRO lens was popular due to the pull-and-slide zoom design that covered a 35-105mm range.  The Macro setting is a 1:4 size reproduction.



           Zoom-NIKKOR 35-105mm f3.5-4.5 adapter to the NX1 

I adapted this lens using a Fotasy NK to NX mount to the Samsung NX1. The following photographs were test shots to see the lens imaging characteristics. 

So far I am really impressed with this lens the color, contrast and sharpness result in very good imaging and creative potential.

Reference source: https://www.mir.com.my/rb/photography/companies/nikon/nikkoresources/zoomsMF/35105mm.htm

Note: The first three photographs were 'adjusted' in post (exposure, contrast).  No adjustments were made to the remaining photographs in this post.










 

 FL-105mm f8  ISO-100  1/320s  EV+0.3

FL-90mm f8  ISO-100  1/320s  EV+0.3

FL-80mm f8  ISO-100  1/320s  EV+0.3