Nikon 60mm Micro

[larry_allen1]

I am thinking of the 60mm Micro lens. The only one I have seen

physically, was a very ealy model about 10? years ago. This model,

when focused at its closed range, the objective element extended out

in front of what would normally be considered the front of the

lens. My question does the current model do this? Thanks, in

advance.

[michael_bradtke]

Yes

It still does that. And its a very nice lens.

 

 

Michael

[alex_lofquist]

All of the Micro Nikkors do this in order to focus closely. There is some adjustment of the internal optics for improved correction of spherical aberration and coma.

[ebogaerts]

"All of the Micro Nikkors do this in order to focus closely."

 

The exceptions being the 200mm Micro-Nikkors, both having IF. Neither lens extends in length during focusing.

[larry_allen1]

Thanks for the responses. Just to be clear I am speaking of the overall physical length of the lens, does this change? I understand the internal extension and have the 200mm Micro Nikor now. Thanks, again.

[lilly_w]

Yep, the overall length of the lens gets longer as you close-focus. The front element, however, remains deeply recessed and protected, eliminating the need for a hood. The front element-to-filter ring distance remains a constant, regardless of focus distance.

[icuneko]

<There is some adjustment of the internal optics for improved correction of spherical aberration and coma.>

 

I think Nikon calls this Close Range Correction (CRC). It's different from

Internal Focussing (IF) and Rear Focusing (RF) though. CRC corrects

aberrations, as stated above, at close distances while IR and RF function

to actually focus the lens without it changing length from flange to the front of the lens barrel.

[treeffe]

Yes,even in the most recent model the lens extend itself when focusing macro. It has never been a problem for me.

 

A very fine lens indeed.