How many steps from 85mm to 200mm?

[pete_s.]

<p>Ahh, full body framing.<br /> Assume 7 feet high so you can have some space around the subject. We also assume a vertical composition which would be the most common scenario.</p>

<p>Distance to subject using an 85mm lens on FX is 85mm / 36mm x 7ft = 16.5 ft.<br /> With a 200mm lens, 200mm / 36mm x 7ft = 38.9 ft.<br /> Distance to move: 38.9ft - 16.5ft = <strong>22.4 ft</strong>.</p>

<p>Average step length being approx 31 inches according to ACM.<br /> So 22.4 ft * 12 / 31" = 8.7 steps.<br /> Since we can't take half steps the answer to the OP question is <strong>9 steps</strong>.</p>

[CvhKaar]

<p>Hi Anurag,<br>

My advice after all the previous answers and debates :<br>

- Rent a 85mm F/1.4 for a day or two, either Nikon or Sigma, and <em>Try</em> if it works for you<br>

play with it and se if it does what you expect from it......<br>

Then decide if this is what you want..</p>

[nigel fraustbyte]

<p>OMG...Is photography this difficult?.....MOM!!!!!!</p>

[nico_morris]

<p>There's only one way to settle this. What you have to do is tie round your waist a really long piece of string and then walk until you're too tired to walk any more, and report back on how long it is.<br>

Hope this helps.</p>

[anuragagnihotri]

Thanks guys