Mamiya Press focusing

[leif pigott]

Hi,

I recently purchased a Mamiya Press, with 65,90 and 150 mm lenses.

 

I don�t seam to be able to get really sharp images out of the camera,

about 15 rolls of flim have been taken. I�m using a tripod (4 Kg) and

cable release, with velvia film. I think my technique is ok.

 

When looking through a 10x loupe they seam to be somewhat blurry,

when compared to photos taken with a Fuji rangefinder (GS645W), Canon

35mm (EOS), Yashicamat, and Mamiya 330f.

 

How good are the lenses when compared to more recent optics, and I am

I asking too much of the camera?

Does anyone have any idea on what might be causing the problem?

 

I like the large format but if I don�t sort out the problem I�m going

get rid of the camera and get a P67.

Thanks for any help

Leif Pigott

[alex_b.]

I had the 65, 100 and 150 (the latter from Fuji) on test on a Super 23 and the sharpnes BLEW ME AWAY!!! They are considered one of the sharpest (older) lenses for medium format, ask any user.

 

You must check Mamiya's back as it swings and tilts - if it is not aligned and fixed in the right plane via 4 screws it may not produce sharp pictures. Also your (6x7 or 6x9?) back might not be fixed properly.

 

The Press is a fine camera, but it so much fuss and unnecessary thinking (did I take out the darkslide? Did I cock the lens? Did I remove the lens cap? Did I move the film to the next frame?) one can really get frustrated. I suggest you try to get used to it (a matter of love or hate I would say)and get the most out of it or consider the P67 your next choice.

[bennojones]

Are you focusing with the rangefinder or with a ground glass back? The rangefinder on my Super 23 needs adjustment, but when I focus with the ground glass back everything is great.

[leif pigott]

Thanks for the responces.

I have been using both a 6x7 back and 6x9 back and the results are the same, not quite right.

I have been using the ground glass back for focusing (sometimes) but most of my landscape stuff it taken using f16 or f22 hyperfocusing so that everything should be well in focus. That is if I'm using f16 I will be using the f11 or f8 depth of field marks on the lens. I got into this habbit with my Fuji range finder (having to guess the distance).

I guess this could be my downfall.

Thanks Leif