Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 07 Sep 2012 (Friday) 19:58
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

EF 100f/2.8 L macro question

 
alazgr8
Member
Avatar
233 posts
Joined Apr 2012
Location: Orange County, CA.
     
Sep 07, 2012 19:58 |  #1

I'm thinking of getting a EF 100f/2.8 L macro IS USM lens, because I want to shoot macro photo's. Before I plunk down my hard earned dough, I wanted to ask a question. I am going to use it on my 40D, which as you all know is a crop body. I do grasp the smaller sensor/crop vs larger sensor/FF concept. What I was wondering is, when using the 100 L lens on my 40D, I multiply the 1.6 crop factor to the 100mm lens and get 160mm. Is that desireable? When/if I get a FF body, and mount that same 100 macro L lens to it, since there will be no crop factor to apply, will I be disappointed in the focal length of my 100mm lens? Will that be a big adjustment? Is there some factor I am over looking that mitigates the loss of 60mm focal length? Something else... why do you apply the 1.6 crop factor to an EF-S lens when it was designed for crop body cameras?

Regards,

Rick


Rick S.
My Gear = Canon 50d ~ EF 100 f/2.8L IS USM Macro ~ EF 100-400 f/4.5-5.6L IS USM ~ EF-S 17-55 IS USM f/2.8 IS ~ EF 70-300 f/4-5.6 IS USM ~ EF 28-135 IS f/3.5-5.6 IS USM

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
DreDaze
happy with myself for not saying anything stupid
Avatar
18,380 posts
Gallery: 49 photos
Likes: 3278
Joined Mar 2006
Location: S.F. Bay Area
     
Sep 07, 2012 20:03 |  #2

you apply the 1.6 crop factor to every lens...because lens focal length is a physical measurement...the better question in my mind is...why are you bothering to even bring in the crop factor aspect of it? does knowing that the 100mm macro on your crop resemble a 160mm lens on a FF camera help you in any way what so ever? if you have no experience with a FF camera, then i don't see the usefulness...yeah you might discover you miss the reach if you do go FF, but there's no sense in buying something that doesn't work for you now in order to get something that will work better for you IF you get a FF camera


Andre or Dre
gear list
Instagram (external link)
flickr (external link)

  
  LOG IN TO REPLY
mannetti21
Goldmember
Avatar
3,231 posts
Gallery: 136 photos
Best ofs: 1
Likes: 516
Joined Sep 2010
Location: Connecticut
     
Sep 07, 2012 20:07 |  #3

I have the 100L, used it for about a year on the 7D (crop sensor), now using it on full-frame. Personally, I like it better on the full frame for a true 100mm focal length because it seems a bit more versatile, especially indoors. That's not to say there was anything wrong with using it on the crop sensor, it's just that you were somewhat limited to using it outdoors, or inside very spacious rooms. Set your 28-135 to 100mm and see what you think.

For use solely as a macro lens, I feel it is actually an advantage to use it on a crop sensor. Versatility improves on full frame. Image quality is absolutely stunning on both.


---------------
5D4, 5D3, Sony ZV-1, Panasonic Lumix FX7, Nikon L35AF, Minolta SRT-102
35Art, 50 f1.8 STM, EF 85 f1.8, EF 16-35L f4, EF 100-400L II
My Buyer/Seller Feedback

  
  LOG IN TO REPLY
sonofjesse
Senior Member
Avatar
691 posts
Likes: 3
Joined Aug 2006
     
Sep 07, 2012 20:11 |  #4

Dont' overlook the non L too. Most say its same quality just missing the IS and red ring.


FeedBack
Feedback 2
Feedback 3
Feedback 4
Feedback 5

  
  LOG IN TO REPLY
mannetti21
Goldmember
Avatar
3,231 posts
Gallery: 136 photos
Best ofs: 1
Likes: 516
Joined Sep 2010
Location: Connecticut
     
Sep 07, 2012 20:16 |  #5

sonofjesse wrote in post #14961916 (external link)
Dont' overlook the non L too. Most say its same quality just missing the IS and red ring.

^^^True. Your next decision is how/if IS will benefit you at this focal length and for whatever you plan to use the lens for, outside of macro.


---------------
5D4, 5D3, Sony ZV-1, Panasonic Lumix FX7, Nikon L35AF, Minolta SRT-102
35Art, 50 f1.8 STM, EF 85 f1.8, EF 16-35L f4, EF 100-400L II
My Buyer/Seller Feedback

  
  LOG IN TO REPLY
The ­ Warlock
Senior Member
Avatar
505 posts
Likes: 2
Joined May 2011
Location: Stavanger, Norway
     
Sep 07, 2012 20:17 |  #6

Dont worry, its brilliant on crop, i love it on my 60D.

IMAGE: http://farm9.staticflickr.com/8421/7787070760_09db4a9b98_b.jpg
IMAGE LINK: http://www.flickr.com …s/the_warlock/7​787070760/  (external link) One straw please (external link) by Vass√łyPhotoClub-Vidar (external link), on Flickr"]
(DUPLICATE IMAGE)
 (external link) One straw please (external link) by Vass√łyPhotoClub-Vidar, on Flickr (external link)

Canon 60D, Canon 1100D , 17-40 4L , 24mm 1.4L II,Zeiss Distagon T*2/35 ZE,50mm 1.2L, 85mm 1.8, 100mm 2.8 IS L, 50mm 1.8II, 18-55 III, 430 exII,TT Retrospective 20, Lightroom 4.
Set a pen to a dream, and the colour drains from it.
R.H. Barlow and H.P. Lovecraft
"The Night Ocean"

  
  LOG IN TO REPLY
alazgr8
THREAD ­ STARTER
Member
Avatar
233 posts
Joined Apr 2012
Location: Orange County, CA.
     
Sep 07, 2012 20:23 |  #7

DreDaze,

I think I phrased my question incorrectly, the crop factor aspect isn't going to affect my decision to get a 100 L macro lens now. The loss of reach was just something I was curious about. From the reviews and everything else I have read, I think the 100 L macro lens will benefit me now, and later, when/if I get a FF camera.

Btw, Your answers to my questions have helped me out before. Recently I made a comment about exchanging my 17-55 EF-S f/2.8 lens for a 16-35 L f/2.8 lens, which I thought would be an equivalent lens. You correctly pointed out the error in my thinking.

Thanks,

Rick

DreDaze wrote in post #14961889 (external link)
you apply the 1.6 crop factor to every lens...because lens focal length is a physical measurement...the better question in my mind is...why are you bothering to even bring in the crop factor aspect of it? does knowing that the 100mm macro on your crop resemble a 160mm lens on a FF camera help you in any way what so ever? if you have no experience with a FF camera, then i don't see the usefulness...yeah you might discover you miss the reach if you do go FF, but there's no sense in buying something that doesn't work for you now in order to get something that will work better for you IF you get a FF camera


Rick S.
My Gear = Canon 50d ~ EF 100 f/2.8L IS USM Macro ~ EF 100-400 f/4.5-5.6L IS USM ~ EF-S 17-55 IS USM f/2.8 IS ~ EF 70-300 f/4-5.6 IS USM ~ EF 28-135 IS f/3.5-5.6 IS USM

  
  LOG IN TO REPLY
ejenner
Goldmember
Avatar
3,867 posts
Gallery: 98 photos
Likes: 1126
Joined Nov 2011
Location: Denver, CO
     
Sep 07, 2012 21:17 as a reply to  @ alazgr8's post |  #8

For macros, it will be very nice on a crop. The issue most people have with it on a crop is when they want to use it as a portrait lens.

Even on FF though, it still gives you a decent amount of working room and is a lot smaller and lighter than a 150mm macro (e.g. the Canon or Sigma).

For indoor macro, working room might not be an issue, however another benefit of the 100mm is that you can get more magnification with tubes than with a 150mm.


Edward Jenner
5DIV, M6, GX1 II, Sig15mm FE, 16-35 F4,TS-E 17, TS-E 24, 35 f2 IS, M11-22, M18-150 ,24-105, T45 1.8VC, 70-200 f4 IS, 70-200 2.8 vII, Sig 85 1.4, 100L, 135L, 400DOII.
http://www.flickr.com/​photos/48305795@N03/ (external link)
https://www.facebook.c​om/edward.jenner.372/p​hotos (external link)

  
  LOG IN TO REPLY
xarqi
Cream of the Crop
Avatar
10,435 posts
Likes: 1
Joined Oct 2005
Location: Aotearoa/New Zealand
     
Sep 07, 2012 21:38 |  #9

Under normal circumstances, "crop factor" can be completely ignored. There is no need even to pose the question. It is a matter of almost total irrelevance. It was coined as a way for salespeople to convince the gullible that less (a smaller sensor) is actually more (this odd thing called "reach").

This is doubly true for a macro lens. The 100L will give you 1:1 images on any EOS body, regardless of the sensor size. The difference, and this is true for all lenses, is that on a body with a smaller sensor, obviously, less of the scene is captured, that is, in comparison to a larger sensor body the image is cropped, hence "crop factor".

As you can see, crop factor does not apply to lenses at all, and most definitely, should not be applied to their focal lengths as if these in some magical way changed based on the body on which the are mounted.




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

1,346 views & 0 likes for this thread
EF 100f/2.8 L macro question
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is lindahaynesss
783 guests, 204 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.