Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Olympus dSLR

Reply
 
Thread Tools Search this Thread
Old Feb 16, 2010, 1:39 AM   #31
Junior Member
 
Join Date: Jan 2010
Location: London
Posts: 29
Default

Quote:
Originally Posted by fldspringer View Post
I'm not trying to talk you out of the 12-60, as its exceptional, but the 40-150 would be a better long solution.

Greg
I do have the 40-150 (the f3.5 bulky one) and it's the one that spends more time attached to the camera. Ok, I'll look into that then.
So, were my calculations/assumptions right (f7 for a f3.5 lens with EC20)?
PiotrFr is offline   Reply With Quote
Old Feb 16, 2010, 4:54 AM   #32
Senior Member
 
Join Date: Feb 2007
Location: Wisconsin
Posts: 1,241
Default

Quote:
Originally Posted by PiotrFr View Post
I do have the 40-150 (the f3.5 bulky one) and it's the one that spends more time attached to the camera. Ok, I'll look into that then.
So, were my calculations/assumptions right (f7 for a f3.5 lens with EC20)?
It would be f7 for the f3.5 lens, of the f3.5 end of the lens. At f7 autofocus will start to be an issue. The 40-150 you have is a variable aperture lens. Its f3.5 at the 40mm end, and f4.5 at the long end. With the 2x converter it wouldn't try to focus at the long end and the viewfinder would be quite dark.

I had the old 40-150 f3.5-4.5 and there is no way I'd personally put an EC-20 on it. I may give the EC-14 a try and would be f6.3 at the long end. You may look at it in a different way, however. Zig has the 135-400 Sigma that you may find used for about that much and the old style 50-200's are runnung on the short side of $600 (just barely) and I think either would out perform the converter setup.

Greg

Last edited by fldspringer; Feb 16, 2010 at 5:00 AM.
fldspringer is offline   Reply With Quote
Old Feb 16, 2010, 3:28 PM   #33
Junior Member
 
Join Date: Jan 2010
Location: London
Posts: 29
Default

Quote:
Originally Posted by fldspringer View Post
The 40-150 you have is a variable aperture lens. Its f3.5 at the 40mm end, and f4.5 at the long end. With the 2x converter it wouldn't try to focus at the long end and the viewfinder would be quite dark.

Greg
Which lens were you talking about then? I thought you said the 40-150 would do.
PiotrFr is offline   Reply With Quote
Old Feb 16, 2010, 8:33 PM   #34
Senior Member
 
Join Date: Feb 2007
Location: Wisconsin
Posts: 1,241
Default

Quote:
Originally Posted by PiotrFr View Post
Which lens were you talking about then? I thought you said the 40-150 would do.
If my memory serves me, I said I'd perfer the 40-150 (alone) to the 12-60/EC-20 combo for the reasons I stated. I wouldn't use the EC-20 on the 40-150 because it wouldn't be bright enough.

I'll issue my opinion. The dimmest lens for our Oly 4/3 cameras is the 18-180 at f6.3 at the long end. There is also the Sigma 50-500 that limits at the same f6.3 at the long end. That's as dim as I'd consider if I expected autofocus.

You may consider the EC-14 for the 40-150, but the expense of the converter would go a long ways toward a longer lens too. It may be a better way to go. I'd guess you won't be happy with the EC-20 for the lenses you have mentioned.

My primary reasons (lenses) for buying the EC-20 were the 50 f2 macro (for macro), the 300mm f2.8 (for reach) and the 35 macro (also for macro). I'm not expecting the 35 macro to autofocus and I'm expecting a im viewfinder.

Greg
fldspringer is offline   Reply With Quote
Old Feb 16, 2010, 8:49 PM   #35
Senior Member
 
Join Date: Feb 2010
Location: Washington State
Posts: 930
Default

Quote:
Originally Posted by fldspringer View Post
If my memory serves me, I said I'd perfer the 40-150 (alone) to the 12-60/EC-20 combo for the reasons I stated. I wouldn't use the EC-20 on the 40-150 because it wouldn't be bright enough.

I'll issue my opinion. The dimmest lens for our Oly 4/3 cameras is the 18-180 at f6.3 at the long end. There is also the Sigma 50-500 that limits at the same f6.3 at the long end. That's as dim as I'd consider if I expected autofocus.

You may consider the EC-14 for the 40-150, but the expense of the converter would go a long ways toward a longer lens too. It may be a better way to go. I'd guess you won't be happy with the EC-20 for the lenses you have mentioned.

My primary reasons (lenses) for buying the EC-20 were the 50 f2 macro (for macro), the 300mm f2.8 (for reach) and the 35 macro (also for macro). I'm not expecting the 35 macro to autofocus and I'm expecting a im viewfinder.

Greg
Dim viewfinder or not a 2x shot w/o tubes or stacked will be awesome. If I wasn't so cheap I'd do the same.
jelow1966 is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 3:52 PM.