Home · Register · Search · View Winners · Software · Hosting · Software · Join Upload & Sell

Moderated by: Tom Hicks
Username   Password

FM Forum Rules
Macro World Resource
  

FM Forums | Macro World | Join Upload & Sell

1       2       3              8      
9
       10       11       end
  

rev 50 revisited.
  
 
Alex53
Offline
• • •
Upload & Sell: Off
p.9 #1 · rev 50 revisited.


Tom Hicks wrote:
The 50 rev, straight to camera body will give you approx 1to1 or more depending on the 50mm lens used . The 50 on the 100 will give you 2 to1 , you get that by dividing 50 into 100 if you use a 24mm you get 4to1 . When using the lens straight to cam you have to set the lens at the f stop you intend to use and you will be looking thru that f stop the image can be dark depending on the light. attached to to 100 you would set the rev lens to
...Show more

Thanks, that makes sense. Can I expect a lot of vignetting?



May 16, 2011 at 07:49 AM
Tom Hicks
Offline
• • • • • • •
Moderator
Upload & Sell: On
p.9 #2 · rev 50 revisited.


Alex53 wrote:
Thanks, that makes sense. Can I expect a lot of vignetting?


Sometimes, it depends on the lens , you may have to put a tube between the camera body and the 100 ,12mm tube will usually fix the vignetting.




May 16, 2011 at 12:39 PM
Alex53
Offline
• • •
Upload & Sell: Off
p.9 #3 · rev 50 revisited.


Tom Hicks wrote:
Sometimes, it depends on the lens , you may have to put a tube between the camera body and the 100 ,12mm tube will usually fix the vignetting.



Thanks. That's good, I have a set of 3 tubes.



May 16, 2011 at 01:41 PM
Srdjule
Offline

Upload & Sell: Off
p.9 #4 · rev 50 revisited.


I experimented with Helios 44-2 reversed on Nikon 18-55, and this is what i got:





I have also tried to put it on Sigma 70-300, and magnification is ridiculously high so as dof.
Monitor pixels showing white color:



May 19, 2011 at 06:09 AM
JJuLLiAAn
Offline
• • •
Upload & Sell: Off
p.9 #5 · rev 50 revisited.


How do you reverse a lens?


Aug 07, 2011 at 03:59 AM
Nijay
Offline
• •
Upload & Sell: Off
p.9 #6 · rev 50 revisited.


JJuLLiAAn wrote:
How do you reverse a lens?


http://www.amazon.com/Fotodiox-Filter-Thread-Reverse-Adapter/dp/B001G4NBSC



Aug 23, 2011 at 05:39 PM
OutOfBreath
Offline

Upload & Sell: On
p.9 #7 · rev 50 revisited.


Hi there,

long time lurker first time poster here :-)

I've just ordered a reversing ring so I can get into some reversed macro shots.

I currently have a 50mm lens that I plan to reverse straight onto the camera body. I also have some tubes.

What is the difference between using a reversed 50mm attached to some tubes or using a shorter focal length without tubes (eg 28mm).... Am I able to get similar magnifications using a reversed 50 and some tubes compared to a straight reversed 28mm?

Thanks.
Paul



Aug 28, 2011 at 10:18 AM
TucsonTom
Offline
• •
Upload & Sell: Off
p.9 #8 · rev 50 revisited.


Well, it all depends ...

For a given focal length, the farther the lens is from the focal plane, the more magnification.
For a given distance (extension) the shorter focal length lens gives more magnification.

One of the thing it depends on is lens construction. The "optical center" of a lens that you
want to measure to depends on lens construction.

As a concrete example, I am working with an older (FD mount) 50mm/f3.5 canon macro lens.
Built into the lens (as is the case with many macro lenses) is a fairly substantial "hood", and
when the lens is reversed, this actually places the optical elements at a fair bit of extension
from the camera -- sort of like a built in extension tube -- so this lens reversed might give
similar magnification as a 28mm reversed and mounted directly on the camera.

But I never mount them directly on the camera -- in my case I am using a nice old FD series
belows as an infinitely variable "extension tube" which I like a lot.

But the thing to do is .... try things out !! It isn't all about magnification though, at least it
certainly isn't once you find out ways to get the amount of magnification you want.
I am in the midst of trying all the different lenses I have to see which give me the best results
in terms of resolution, lack of flare, color saturation, contrast, overall image quality.
The main things is to experiment and try things, expect to be surprised.



Aug 28, 2011 at 04:11 PM
Krosavcheg
Offline
• • • •
Upload & Sell: Off
p.9 #9 · rev 50 revisited.


I am more so amazed by Tom's ability to place/compose subjects..
So far I personally haven't been able to encounter a jumper who didn't scurry away in a flash at a sight of me..



Sep 17, 2011 at 06:42 AM
madugo
Offline

Upload & Sell: Off
p.9 #10 · rev 50 revisited.


nicely done!


Oct 31, 2011 at 06:55 PM
 

Search in Used Dept. 



Marshall Alsup
Offline

Upload & Sell: Off
p.9 #11 · rev 50 revisited.


Amazing shots and info in this thread. One thing I didn't see answered:

When shooting at >1x magnification, with the lens perhaps only an inch away from the subject, how do you keep it from running away?

I realize one can approach slowly, which is what I've tried to do (with limited success ) with my 105vr, but it seems that if I had to get much closer there would be no way. I'm just curious how you do it.

Anyway, again, great shots all!



May 09, 2012 at 11:41 PM
sdbponline
Offline

Upload & Sell: Off
p.9 #12 · rev 50 revisited.


Sigma 70-300mm with reverse 50mm.........

http://turtleman9100.megashot.net/photos/272042



Aug 24, 2012 at 07:07 AM
Drewdeezy
Offline

Upload & Sell: Off
p.9 #13 · rev 50 revisited.


amazing shots my friend these are great inspiration and fun to look at


Aug 25, 2012 at 02:22 PM
gokalp
Offline

Upload & Sell: Off
p.9 #14 · rev 50 revisited.


Krosavcheg wrote:
I am more so amazed by Tom's ability to place/compose subjects..
So far I personally haven't been able to encounter a jumper who didn't scurry away in a flash at a sight of me..


Yeah, are there any tricks to this? Any suggestions?



Nov 05, 2012 at 03:58 AM
kwoodard
Online
• • • •
Upload & Sell: On
p.9 #15 · rev 50 revisited.


New to this forum, but love me some Macro...

This time did a little "Free-Lensing, Reverse Macro" (holding the lens backwards in front of the lens mount, tilting slightly to achieve the desired focal plane).

This is maybe a 20% crop, I am about 3 inches away. Little guy flew into the shot.


Up close and personal by Kevin.Woodard, on Flickr

The color/dots are about 1/16 of an inch below a clear acrylic coating. This is NOT a crop, the ball is about 1.25" in diameter...


Free-Lensing Macro by Kevin.Woodard, on Flickr

What do you all think?



Nov 06, 2012 at 08:44 PM
tbranscombe
Offline

Upload & Sell: Off
p.9 #16 · rev 50 revisited.


Hard to ignore an unanswered question!

I think you have a great subject, but one that has been obscured by the bright highlights far too much. I would like to see some further tries with more diffuse light sources, and perhaps a black background to pop the colours that little bit more.

Terry



Nov 19, 2012 at 12:58 AM
Tom Hicks
Offline
• • • • • • •
Moderator
Upload & Sell: On
p.9 #17 · rev 50 revisited.


I know it's been a while since my last post , hope all is well.


Nov 27, 2012 at 02:46 PM
MarkB1
Offline
• • • • •
Upload & Sell: Off
p.9 #18 · rev 50 revisited.


Good to see the stickies back.


Nov 28, 2012 at 08:58 AM
sozypozy
Offline
• • •
Upload & Sell: Off
p.9 #19 · rev 50 revisited.


Macros are expensive. How far do you think I can get with the reverse lens technique with my kit lens?


Jan 02, 2013 at 08:14 PM
Tom Hicks
Offline
• • • • • • •
Moderator
Upload & Sell: On
p.9 #20 · rev 50 revisited.


sozypozy wrote:
Macros are expensive. How far do you think I can get with the reverse lens technique with my kit lens? http://www.ovirfh9384.info/images/14.gif


all you can do is give it a try , there going to be a large learning curve.



Jan 07, 2013 at 12:10 AM
1       2       3              8      
9
       10       11       end




FM Forums | Macro World | Join Upload & Sell

1       2       3              8      
9
       10       11       end
    
 

You are not logged in. Login or Register

Username   Password    Retrive password