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Nikon DSLR Cameras
D7100
Manual Focus
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<blockquote data-quote="yauman" data-source="post: 278063" data-attributes="member: 15418"><p>Trying to manual focus with any of the new autofocus cameras and lenses is a lot more difficult than the old manual focus only days.</p><p></p><p>1. Autofocus lenses when used in the manual focus mode have very short rotational travel on their focus ring. Like on my Tamron 60mm, focusing from infinity to 1.5ft is less than 60 deg rotation - that's from 12 to 2 on the clock. Try manual focusing in any but bright scenes is a challenge for this old pair of eyes! My old manual focus Rokkor Minolta 200mm focusing from infinity to 3ft requires a 300 deg rotation of the focus ring (that 12noon to 10 clockwise on the clock face). Now that fine focusing!</p><p></p><p>2. The viewfinder no longer have any focus aids like the split screen or the magnified grain spot. So you'll have to have at least one good eye! Make sure you have the diopter setting on your eye piece correct. Someone sells a <em><strong><a href="http://www.katzeyeoptics.com/item--Nikon-D7100-Focusing-Screen--prod_D7100.html" target="_blank">split focus retrofit for the D7100</a></strong></em> and now that I'm doing more product photography, I'm thinking of getting one - waiting for my D7100 warranty to expire before I take it apart!</p><p></p><p>Having said all that, I think the D7100 does a very good job with auto focus on all the lenses I have for it. I do model shoots (at f4 or f5.6 DOF with 35mm to about 70mm lenses) and when I compare auto and manual, I don't think I can do better. I think definitely for close up macro work, manual focus would be the way to go.</p></blockquote><p></p>
[QUOTE="yauman, post: 278063, member: 15418"] Trying to manual focus with any of the new autofocus cameras and lenses is a lot more difficult than the old manual focus only days. 1. Autofocus lenses when used in the manual focus mode have very short rotational travel on their focus ring. Like on my Tamron 60mm, focusing from infinity to 1.5ft is less than 60 deg rotation - that's from 12 to 2 on the clock. Try manual focusing in any but bright scenes is a challenge for this old pair of eyes! My old manual focus Rokkor Minolta 200mm focusing from infinity to 3ft requires a 300 deg rotation of the focus ring (that 12noon to 10 clockwise on the clock face). Now that fine focusing! 2. The viewfinder no longer have any focus aids like the split screen or the magnified grain spot. So you'll have to have at least one good eye! Make sure you have the diopter setting on your eye piece correct. Someone sells a [I][B][URL="http://www.katzeyeoptics.com/item--Nikon-D7100-Focusing-Screen--prod_D7100.html"]split focus retrofit for the D7100[/URL][/B][/I] and now that I'm doing more product photography, I'm thinking of getting one - waiting for my D7100 warranty to expire before I take it apart! Having said all that, I think the D7100 does a very good job with auto focus on all the lenses I have for it. I do model shoots (at f4 or f5.6 DOF with 35mm to about 70mm lenses) and when I compare auto and manual, I don't think I can do better. I think definitely for close up macro work, manual focus would be the way to go. [/QUOTE]
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Nikon DSLR Cameras
D7100
Manual Focus
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