Macro combo - 105mm + TC 1.4 + Extension Tube 36mm


kol1te

New Member
Aug 16, 2005
102
0
0
Singapore
#1
Hi all,

I have been using 105mm + TC 1.4. Recently, found a set of long lost extension tubes in dry cabinet. :bsmilie:

Thought if i can put them into some good use.

Setup
D300 + Extension Tube (36mm) + TC (1.4) + 105mm Micro

- What does this gives me in terms of magniflying factor?
- So far, I know I will gain 1 stop (or more - which is fine for macro) and lost some IQ due to TC. No sure what else...

Any feedback or advice not to use it?

Thanks, Chee Keong.
 

rhino123

Moderator
Staff member
Sep 1, 2006
5,243
15
38
NA
#2
Hi all,

I have been using 105mm + TC 1.4. Recently, found a set of long lost extension tubes in dry cabinet. :bsmilie:

Thought if i can put them into some good use.

Setup
D300 + Extension Tube (36mm) + TC (1.4) + 105mm Micro

- What does this gives me in terms of magniflying factor?
- So far, I know I will gain 1 stop (or more - which is fine for macro) and lost some IQ due to TC. No sure what else...

Any feedback or advice not to use it?

Thanks, Chee Keong.
Additional Magnification = (Extension Tube Length)/(Lens Focal Length)

Well... u do the maths (I don't have my calculator with me).

One thing is... depending on your extension tube, some of them are chipped, while others didn't. So if they are chipped, you have AF confirmation, if not, you lose all AF confirmation. I believe that you would not have autofocus now though, so all focus are manual focus.
 

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