paul_owen Posted June 29, 2001 Share Posted June 29, 2001 To date I have managed to control the amount of tilt needed in my landscape work by simply observing the ground glass as I use various movement. But, does anyone out there have any experience of using the rodenstock scheimpflug calculator in general landscape/architectural shots. I can see its worth in say, studio/product shots, but would it be a useful addition for those (albeit rare) occasions when the scene is "complicated" and adjustments difficult to observe solely using the GG. <p> Thanks in advance, Paul Owen Link to comment Share on other sites More sharing options...
stefan_dalibor1 Posted June 29, 2001 Share Posted June 29, 2001 I use the Rodenstock Calculator from time to time for shots where DOF is critical, but almost every time if tilt is to be applied.<BR> IMHO this device is quite nice to have - and if only to check the adjustments I did before, or for giving an estimate before fine-tuning (of course I don't rely solely on the calculator).<P> Using the calculator for DOF control confirms almost every time what our dear moderator writes in his article on DOF: you have to stop down quite a lot, often 1.5 f-stops more than what I guessed w/o the device. Link to comment Share on other sites More sharing options...
jorge_gasteazoro Posted June 29, 2001 Share Posted June 29, 2001 It sure is, I use it mainly for Landscape and has made my life a lot easier. Link to comment Share on other sites More sharing options...
john_hennessy Posted June 30, 2001 Share Posted June 30, 2001 If you use the DOF side, you cannot rely on its f stop recommendation. Somewhere is the directions is says this too. Use one or two more stops than it says or just set your format to 6x6 rather than 4x5. <p> The tilt side is useful if you know where the plane of sharp focus should be placed. Link to comment Share on other sites More sharing options...
bob_salomon3 Posted June 30, 2001 Share Posted June 30, 2001 <If you use the DOF side, you cannot rely on its f stop recommendation. Somewhere is the directions is says this too.> <p> That is not quite what it says. <p> What it says is: <p> "This calculator is based on the (internationally standard) circle of confusion of 0.0.3mm for the 35mm format which is in general use for depth of field scales and tables. The circle is enlarged proportionally for other formats. To obtain the highest quality, it may be advisable to stop down by o f-stop more as long as you do not go beyond f32 (increased diffraction!). <p> This is hard to miss as it is not just "somewhere" it is the 1st paragraph of the instructions on the English instructions and the German instructions. Link to comment Share on other sites More sharing options...
albert_martinez Posted July 2, 2001 Share Posted July 2, 2001 Hi Paul, <p> I scanned the scale at a high resolution then added the correspondingf-stops,I attached the file if your interested. I then used a self adhesive sheet of paper and attached itto my rear standard. That way, I always have an idea how far I'm racking the rear standard-which determines the f-stop you'll need.It's a very cheap version of what Sinar does with their built in dof calculator knob. Procedure:1.Set the rear standard flush, this is 0 on the scale.2.Focus on the furthest object with your front standard.3.Focus on the closest object with your rear standard,in doing soyou'll get the distance traveled with our attached ruler, this corresponds to an fstop.4.If infinity is not involved, split the difference in terms of distance traveled, stop down and your set.5. If infinity is involved, focus on infinity then read Harold Merklinger's views for the rest. <p> Hope this helps-Albert Link to comment Share on other sites More sharing options...
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