lenses - internal focus or not
Posted: 11.02.2009 21:00
I have just obtained the trailware and am quite excited about the software. My interest is landscape rather than pure macro, for example flowers foreground, mountains behind.
I understand that a normal focusing lens will change the magnification of an object and this has implications for the near end of the spectrum - a few inches from the lens. An internal focusing lens does not change the size of the object (although I do notice that objects come and go at the edge of the picture as you change focus!).
I don`t own an internal focusing wide angle lens. I have a large-format monorail camera, but taking four or more 6 x 12 cm panoramas to get 1 scanned working image doesn`t appeal to my pocket! So 35mm digital it is.
Have people only gotten good results (in the area I mentioned) from internal focusing lenses? Can the software adequately compensate for changes in magnification, of foreground flowers for example? I`m not looking to print large, but only to obtain reasonably sharp and convincing images for digital projection (6 x 2 metre screen, mind you).
Thanks
Ian
I understand that a normal focusing lens will change the magnification of an object and this has implications for the near end of the spectrum - a few inches from the lens. An internal focusing lens does not change the size of the object (although I do notice that objects come and go at the edge of the picture as you change focus!).
I don`t own an internal focusing wide angle lens. I have a large-format monorail camera, but taking four or more 6 x 12 cm panoramas to get 1 scanned working image doesn`t appeal to my pocket! So 35mm digital it is.
Have people only gotten good results (in the area I mentioned) from internal focusing lenses? Can the software adequately compensate for changes in magnification, of foreground flowers for example? I`m not looking to print large, but only to obtain reasonably sharp and convincing images for digital projection (6 x 2 metre screen, mind you).
Thanks
Ian