Hi all,
This is a stupid question regarding a problem I'm encountering after switching from my Horseman 45FA to Linhof Technika V. The 45FA has a ground glass and fresnel which I believe, but aren't certain of, is two separate pieces. I have never had a problem focusing when using it. The screen is bright and the grain fine, with the image sharp on the GG. I use a lupe and have always had it set at the "zero" focus position. When using the lupe on the Technika yesterday (the first outing I've had with it) I found it incredibly hard to find a sharp plane of focus. My lupe just didn't seem sharp and I have come to wonder (it's late here so can't test my theory) that this new set up might require a different setting on my lupe to bring the ground glass and not the fresnel into focus? Does this sound plausible? The only explanation to this is that the Linhof fresnel is thicker than that of the Horseman, therefore emphasizing any margin of focus error with the lupe. Does any of this make sense? Am I going crazy?
As an aside, and I'm sure some of you with identify with this, it's funny that when out in the field and encountering these problems, my brain just didn't click to what might have been the cause. I'm so used to one way of doing something that I persevered and pushed on, despite frustrations. I did turn the lupe upside down and wondered why the focused image was so much sharper, but even then I didn't think to adjust the lupe focus for normal viewing, if indeed this was the problem...
T
This is a stupid question regarding a problem I'm encountering after switching from my Horseman 45FA to Linhof Technika V. The 45FA has a ground glass and fresnel which I believe, but aren't certain of, is two separate pieces. I have never had a problem focusing when using it. The screen is bright and the grain fine, with the image sharp on the GG. I use a lupe and have always had it set at the "zero" focus position. When using the lupe on the Technika yesterday (the first outing I've had with it) I found it incredibly hard to find a sharp plane of focus. My lupe just didn't seem sharp and I have come to wonder (it's late here so can't test my theory) that this new set up might require a different setting on my lupe to bring the ground glass and not the fresnel into focus? Does this sound plausible? The only explanation to this is that the Linhof fresnel is thicker than that of the Horseman, therefore emphasizing any margin of focus error with the lupe. Does any of this make sense? Am I going crazy?
As an aside, and I'm sure some of you with identify with this, it's funny that when out in the field and encountering these problems, my brain just didn't click to what might have been the cause. I'm so used to one way of doing something that I persevered and pushed on, despite frustrations. I did turn the lupe upside down and wondered why the focused image was so much sharper, but even then I didn't think to adjust the lupe focus for normal viewing, if indeed this was the problem...
T