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Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

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Mamiya 645 AF 75-150mm F/4.5 D vs 80mm f/2.8 AF
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Posted: Wed Dec 07, 2022 9:25 pm
Post subject: Mamiya 645 AF 75-150mm F/4.5 D vs 80mm f/2.8 AF
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Posted: Wed Dec 07, 2022 9:25 pm
Post subject: Mamiya 645 AF 75-150mm F/4.5 D vs 80mm f/2.8 AF
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Today arrived to me Mamiya 75-150mm F/4.5 D Lens For Mamiya 645AF system (obtained from KEH Camera Outlet for US $544.93, and the final price for me at the end of the destination in $670 - condition "like the new one")




which I immediately put to the “dirty test” with my only AF prime in that system Mamiya 80mm 2.8 AF 645.

I tested both at 4.5 and 8.0 diaphragms, using my Phase One 645DF+ with the P25 back, at ISO 100, upon the sturdy tripod.

There are the test photos in the full dimension (I didn’t check very mush the flatness and coherence of the camera and the wall, so the better is to look at the centre, and the right side of the picture).

1. Mamiya 75-150mm F/4.5 D, f/4.5

https://i.ibb.co/7QhVc5R/75-150-4-5.jpg

2. Mamiya 80mm 2.8, f/4.5

https://i.ibb.co/qMFFvNZ/80-4-5.jpg

3. Mamiya 75-150mm F/4.5 D, f/8.0

https://i.ibb.co/KzwD8Xm/75-150-8-0.jpg

4. Mamiya 80mm 2.8, f/8.0

https://i.ibb.co/HXP3P74/80-8-0.jpg

What was most sticking for me, that the 75-150mm lens has uniform resolution and sharpness through the field even at f/4.5, and was far away before 80mm 2.8 at that diaphragm. And even at f/8.0 it was steel much, much better. Especially at the borders.


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Posted: Thu Dec 08, 2022 2:51 pm
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Posted: Thu Dec 08, 2022 2:51 pm
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Last edited by LittleAlex on Tue Jul 18, 2023 8:54 am; edited 1 time in total


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Posted: Sun Dec 11, 2022 8:28 am
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Posted: Sun Dec 11, 2022 8:28 am
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120mm 1/700 s; f/4,8; ISO 200



There is image in the full dimension:

https://i.ibb.co/dp5q8kP/CF016506-min.jpg


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Posted: Fri Dec 16, 2022 6:51 pm
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Posted: Fri Dec 16, 2022 6:51 pm
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Last edited by LittleAlex on Tue Jul 18, 2023 8:55 am; edited 1 time in total


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Posted: Fri Dec 16, 2022 7:43 pm
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Posted: Fri Dec 16, 2022 7:43 pm
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Mamiya 75-150mm F/4.5 D vs Mamiya SEKOR MACRO MF 120mm F/4 in macro mode

Mamiya 75-150mm F/4.5 D, 130mm, 15,0 с; f/11; ISO 50



There is the full size image:

https://i.ibb.co/c8QLdSv/CF016524-min.jpg

Mamiya SEKOR MACRO MF 120mm F/16.0 10,0 s; ISO 50



There is the full size image:

https://i.ibb.co/cxQz1kx/CF016529-min.jpg


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Posted: Tue Jul 11, 2023 12:28 pm
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Posted: Tue Jul 11, 2023 12:28 pm
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Mamiya 75-150mm F/4.5 D Lens f/4.5 ISO 100



There is the full size image:

https://i.ibb.co/N7MN0pt/CF016564-min.jpg


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Posted: Tue Jul 11, 2023 2:56 pm
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Posted: Tue Jul 11, 2023 2:56 pm
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LittleAlex wrote:
Mamiya 75-150mm F/4.5 D

1/4000 s; f/4,8; ISO 100

The sun was directly in the frame. Very strange results:



The sunlght - focused by yor lens - is extremely bright. It completely overloads the sensor. A prolonged exposure will even destroy it.

S


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Posted: Tue Jul 11, 2023 10:56 pm
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Posted: Tue Jul 11, 2023 10:56 pm
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stevemark wrote:


The sunlght - focused by yor lens - is extremely bright.



Well, it has to be anyway. Bat the shape is very strange indeed. I have never met anything like that in all my life.


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Posted: Sat Jul 15, 2023 7:13 pm
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Posted: Sat Jul 15, 2023 7:13 pm
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Mamiya 75-150mm F/4.5 D Lens f/4.5 1/45 s; ISO 100




There is the full size image:

https://i.ibb.co/cw5Tzq2/CF016551.jpg


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Posted: Sun Jul 16, 2023 8:14 pm
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Posted: Sun Jul 16, 2023 8:14 pm
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Mamiya 75-150mm F/4.5 D Lens f/4.5 1/15 s; ISO 100



There is the full size image:

https://i.ibb.co/5nMk17h/CF016556.jpg
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