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 26 Oct 2016 (Wednesday) 21:44
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Comparison of different telephoto lenses on different Mp size bodies

 
Pagman
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
Post edited over 4 years ago by Pagman.
     
Oct 26, 2016 21:44 |  #1

Folks just been googling this to find a comparison -

If you had the option to either put say a canon 70-300 IS USM lens on a 20 + Mp body and crop the image to equal a 400mm lens FOV, or put a mediocre 400mm lens on a slightly smaller Mp body say 16/17Mp and use it at 400mm - the weakest IQ range of that lens.

Say using a 50D with a Tokina 80-400 at 400mm or using a 80D with a Canon 70-300IS USM at 300mm and cropping in post to the same size FOV as the 400mm lens.

What would you do?

P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
crbinson
Senior Member
614 posts
Likes: 89
Joined Jul 2012
Location: OKC
     
Oct 26, 2016 23:15 |  #2

Neither; I'd save my money and get a 400mm f/5.6L


My Flickr (external link) | My Gear List

  
  LOG IN TO REPLY
Wilt
Reader's Digest Condensed version of War and Peace [POTN Vol 1]
Avatar
44,154 posts
Gallery: 1 photo
Likes: 3423
Joined Aug 2005
Location: Belmont, CA
Post edited over 4 years ago by Wilt.
     
Oct 27, 2016 00:12 |  #3

Impossible to speculate, as you need to compare the combinations in actuality, not merely in theory, to derive MTF scores for each before computing the differences resulting from final magnifcation.


You need to give me OK to edit your image and repost! Keep POTN alive and well with member support https://photography-on-the.net/forum/donate.p​hp
Canon dSLR system, Olympus OM 35mm system, Bronica ETRSi 645 system, Horseman LS 4x5 system, Metz flashes, Dynalite studio lighting, and too many accessories to mention

  
  LOG IN TO REPLY
bildeb0rg
Goldmember
Avatar
3,339 posts
Gallery: 465 photos
Best ofs: 1
Likes: 3305
Joined Oct 2006
Location: Dumfries and Galloway in Scotland
     
Oct 27, 2016 04:27 |  #4

I'll play, i would go new sensor and shorter lens. Could get away with lower shutter speeds on the 300 with better noise control




  
  LOG IN TO REPLY
Bassat
"I am still in my underwear."
8,075 posts
Likes: 2739
Joined Oct 2015
Post edited over 4 years ago by Bassat.
     
Oct 27, 2016 07:22 |  #5
bannedPermanent ban

Starting with 2 mediocre lenses isn't going to get you really good results no matter what you do.




  
  LOG IN TO REPLY
Perfectly ­ Frank
I'm too sexy for my lens
5,179 posts
Gallery: 95 photos
Likes: 2897
Joined Oct 2010
     
Oct 27, 2016 07:30 |  #6

Pagman wrote in post #18168037 (external link)
Say using a 50D with a Tokina 80-400 at 400mm or using a 80D with a Canon 70-300IS USM at 300mm and cropping in post to the same size FOV as the 400mm lens.

You would end up with a 13.5 Mp image from the 80D, which most likely would still provide good IQ.

But the 50D is 8 years old, and sensor technology and AF performance has improved. And since your an aviation photographer,
the 80D's AF would be a better choice.


When you see my camera gear you'll think I'm a pro.
When you see my photos you'll know that I'm not.

My best aviation photos (external link)

  
  LOG IN TO REPLY
gjl711
"spouting off stupid things"
Avatar
56,266 posts
Likes: 2948
Joined Aug 2006
Location: Deep in the heart of Texas
     
Oct 27, 2016 07:46 |  #7

Wilt wrote in post #18168132 (external link)
Impossible to speculate, as you need to compare the combinations in actuality, not merely in theory, to derive MTF scores for each before computing the differences resulting from final magnifcation.

I'm with Wilt on this one. Though you could do the math, actual hardware never performs to theoretical limits and in this case, as it's so close, the performance of the actual hardware will make a huge impact.


Not sure why, but call me JJ.
I used to hate math but then I realised decimals have a point.
.
::Flickr:: (external link)
::Gear::

  
  LOG IN TO REPLY
Eastport
Senior Member
Avatar
940 posts
Gallery: 1 photo
Likes: 47
Joined Apr 2009
     
Oct 27, 2016 08:13 |  #8

Which one of the currently available four 70-300 Canon IS lenses are you thinking about:

70-300 DO

70-300 IS L

70-300 IS non-L

new 70-300 IS non-L




  
  LOG IN TO REPLY
Perfectly ­ Frank
I'm too sexy for my lens
5,179 posts
Gallery: 95 photos
Likes: 2897
Joined Oct 2010
     
Oct 27, 2016 10:30 |  #9

To the OP...

Are you considering buying an 80D for aviation photography?

The 80D isn't the first camera to come to mind when thinking about aviation. Usually it's the 7DII.
The 80D doesn't pack all the performance of the 7DII, but it has 4 more Mps and better DR than
the 7DII (at least according to DPR). And it's less expensive.

While surfing flickr I came across these 80D aviation photos. I believe the photographer is a fellow
forum member here. Pretty impressive 80D aviation images, I say!

https://www.flickr.com​/photos/private_custar​d/ (external link)


When you see my camera gear you'll think I'm a pro.
When you see my photos you'll know that I'm not.

My best aviation photos (external link)

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
Post edited over 4 years ago by Pagman.
     
Oct 27, 2016 10:57 |  #10

I may have about £500-£550 around xmas to get a dslr and long lons as possible, I had a short list that due to money has come down basically to a Nikon D7000 with the most budget available zoom going to 400mm that I have seen second hand is the Tokina 80-400 D.

I used to have a Nikon D7100 with a AF-S 70-300VR and at the moment am re editing my aviation pics from it, I am plesently supprised how good this set up was, this is what has led to me asking the question as My budget will be extremely tight and a one off occasion with no opption to save any more money.

I had considered Canon but tbh not the 7D as the one I had I just did not take to, the 80D I mentioned not to buy as its well out of my budget metioned, I know the 60D is near to my budget if I look hard on Ebay(might be a bit rough round the edges if cheap), then I know the only Canon 400mm zoom the mk1 100-400 would be out of my budget.

So not many opptions due to the budget and my requirements - Light weight, 400mm lens with less need for cropping, or a 300mm lens but on a larger Mp body allowing more cropping to reach the 400mm lens length.

I know £500-550 doesn't leave a lot of wiggle room.


P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
     
Oct 27, 2016 18:27 |  #11

crbinson wrote in post #18168098 (external link)
Neither; I'd save my money and get a 400mm f/5.6L


Cant afford one:cry:

P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
     
Oct 27, 2016 18:28 |  #12

Wilt wrote in post #18168132 (external link)
Impossible to speculate, as you need to compare the combinations in actuality, not merely in theory, to derive MTF scores for each before computing the differences resulting from final magnifcation.


Ta for that - I have tried to make sense of the lens charts but they do seem to differ between different online reviews.

P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
     
Oct 27, 2016 18:29 |  #13

bildeb0rg wrote in post #18168232 (external link)
I'll play, i would go new sensor and shorter lens. Could get away with lower shutter speeds on the 300 with better noise control


Ta for that = the 80D was just an example due to its 24mp size.

P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
     
Oct 27, 2016 18:30 |  #14

Bassat wrote in post #18168302 (external link)
Starting with 2 mediocre lenses isn't going to get you really good results no matter what you do.


Very true - but if on a Tight tight budget there isnt a lot you can do about it:cry:


P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
9,916 posts
Gallery: 2418 photos
Likes: 14143
Joined Dec 2011
     
Oct 27, 2016 18:35 |  #15

Perfectly Frank wrote in post #18168308 (external link)
You would end up with a 13.5 Mp image from the 80D, which most likely would still provide good IQ.

But the 50D is 8 years old, and sensor technology and AF performance has improved. And since your an aviation photographer,
the 80D's AF would be a better choice.


I did some math on the linear edge comparing the percentage difference between a 24mp and 16mp long edge linear, and it works out at 22% if you cropped the 24mp linear edge down to the same as the 16mp.
But to reach 400mm FOV by cropping alone as said above would require a crop down to 13.5mp.

P.


Finally got it right I think - Nikon D7500, Nikon 300 F4 PF, Nikon 1.4 X mk3 TC

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

6,893 views & 11 likes for this thread
Comparison of different telephoto lenses on different Mp size bodies
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 jgozzi
820 guests, 216 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.