26th February 2004, 02:11 PM
26th February 2004, 03:12 PM
Well, if i really want to be analytical about it, i would ask myself two questions:
1) What resolution do i need/want? 4R? 8R? 16R? The higher the magification, the more resolution i need. i will need to work backwards - for example, if i'm printing an A3 and i want it sharp at native 250dpi, i will need about 3000dpi on film or ~60 lp/mm.
2) Where is the 'sharpness' bottleneck in my system? Is it my lens, my film/sensor, my camera (mirror slap, film curvature, etc), or my technique (ie i need a tripod)?
If i know, for example, that i'm using fast grainy film which resolves only 40 lp/mm, or that my camera slap is affecting the picture bcoz i'm shooting at 600mm, or that my lens is crappy (low resolution) and simply unable to resolve more than 50 lp/mm, blah blah, then the tripod wouldn't matter - bcoz the sharpness bottleneck is (suspected to be) somewhere else. i need to fix the weakest link in my chain first, so to speak.
A tripod with good technique will bring you to around 40-60 lp/mm, to go signifcantly higher, you need to look at very good lenses and fine grained BW film.
90% of the time, the weakest is the handholding part, and using a pod substantially improves the sharpness.
There are some situations where you absolutely must have a tripod - multiple exposures, very long exposures, etc.
Hope this helps.
26th February 2004, 03:37 PM
26th February 2004, 08:15 PM
tripod is meant for those times when u reach the utmost lower limit of your handholdeability and still intend not to incur signs of camera shake. for example 9pm at night, ISO 800, f2, 2 seconds. ^_^