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

Moderated by: Fred Miranda
Username   Password

  New fredmiranda.com Mobile Site
  New Feature: SMS Notification alert
  New Feature: Buy & Sell Watchlist
  

FM Forums | Canon Forum | Join Upload & Sell

1
       2       3       4       end
  

Archive 2008 · 17-85 Exposed
  
 
sbv20
Offline
• •
Upload & Sell: Off
p.1 #1 · p.1 #1 · 17-85 Exposed


I took apart my broken 17-85 as I decided it wasn't worth fixing. Thought some of you might find it interesting.

How does it all fit in there?






This was the problem:






The aperture had been stuck closed, ever since taking this picture:




Weird!

The IS mechanism, really cool:






Front elements:






Success!






On a 300d, haha. very light combo now:






I still have all the parts if anyone is curious about something in particular.

-Sam




Oct 04, 2008 at 08:37 PM
veroman
Offline
• • • •
Upload & Sell: On
p.1 #2 · p.1 #2 · 17-85 Exposed


sbv20 wrote:
I took apart my broken 17-85 as I decided it wasn't worth fixing. Thought some of you might find it interesting.

How does it all fit in there?
http://samboyko.com/files/fm/17851.jpg

This was the problem:
http://samboyko.com/files/fm/17852.jpg

The aperture had been stuck closed, ever since taking this picture: http://samboyko.com/Italy/week09_spring_break/images/img_5871.jpg
Weird!

The IS mechanism, really cool:
http://samboyko.com/files/fm/17853.jpg

Front elements:
http://samboyko.com/files/fm/17854.jpg

Success!
http://samboyko.com/files/fm/17855.jpg

On a 300d, haha. very light combo now:
http://samboyko.com/files/fm/17856.jpg

I still have all the parts if anyone is curious about something in particular.

-Sam



Bravo. Really fascinating glimpse into the inner workings of a lens. Thanks for taking the time.

- Steve



Oct 04, 2008 at 08:39 PM
Alek Komarnits
Offline
• • •
Upload & Sell: Off
p.1 #3 · p.1 #3 · 17-85 Exposed


WOW - that was cool - impressive how much stuff they pack inside there.


Oct 04, 2008 at 08:39 PM
EB-1
Offline
• • • • • • •
Upload & Sell: Off
p.1 #4 · p.1 #4 · 17-85 Exposed


Couldn't you buy the replacement part from Canon?

EBH



Oct 04, 2008 at 08:42 PM
ChrisDM
Offline
• • • • •
Upload & Sell: On
p.1 #5 · p.1 #5 · 17-85 Exposed


Cool photos, thanks!


Oct 05, 2008 at 01:15 AM
Dneufarth
Offline
• • •
Upload & Sell: On
p.1 #6 · p.1 #6 · 17-85 Exposed


I will be even more impressed if you put it back together. This is really cool, thanks, Derek


Oct 05, 2008 at 01:23 AM
CMOS
Offline
• • •
Upload & Sell: Off
p.1 #7 · p.1 #7 · 17-85 Exposed


Great post!


Oct 05, 2008 at 01:28 AM
azurekenzo
Offline
• •
Upload & Sell: Off
p.1 #8 · p.1 #8 · 17-85 Exposed


Lol, I may follow you soon. My 17-85mm is broken too even I didnt touch it since I move to fullframe (it was fine before I got my 5D). $200 to fix the USM is not worth at all.


Oct 05, 2008 at 01:32 AM
Sam tran
Offline
• • •
Upload & Sell: Off
p.1 #9 · p.1 #9 · 17-85 Exposed


I will be even more impressed if you put it back together.
Right on dude! let do the reverse engineering and manufacture your own L-lens from it...
Just imagined if I have the 24-70mm f/2.8 lens as my pencils holder. Way too cool!!!



Oct 05, 2008 at 01:34 AM
digitalbug30d
Offline
• • • •
Upload & Sell: On
p.1 #10 · p.1 #10 · 17-85 Exposed


poor thing...


Oct 05, 2008 at 01:40 AM
 

Search in Used Dept. 



digitalbug30d
Offline
• • • •
Upload & Sell: On
p.1 #11 · p.1 #11 · 17-85 Exposed


you could start a new thread blow up your L lens, have a lens of the week..next week we take apart a 200 f2L just for kicks...


Oct 05, 2008 at 01:42 AM
Matt Philbin
Offline
• • • •
Upload & Sell: Off
p.1 #12 · p.1 #12 · 17-85 Exposed


Dneufarth wrote:
I will be even more impressed if you put it back together. This is really cool, thanks, Derek





Oct 05, 2008 at 01:45 AM
Jman13
Offline
• • • • • •
Upload & Sell: On
p.1 #13 · p.1 #13 · 17-85 Exposed


Really funny that the aperture stuck after taking a picture with tons of closed down aperture looking designs. Creepy.




Oct 05, 2008 at 01:52 AM
Gil_W
Offline
• • •
Upload & Sell: Off
p.1 #14 · p.1 #14 · 17-85 Exposed


OK I'll ask:
Are you serious about the last shot being that window or gate or what ever it is? Come on!

If it's true, that IS weird and never take a shot of it again with any lens.

Thanks for the 17-85 exposed shots, neat'o.

Gil



Oct 05, 2008 at 01:55 AM
Joseph C J
Offline
• • •
Upload & Sell: Off
p.1 #15 · p.1 #15 · 17-85 Exposed


Awesome... I really enjoyed this post... thanks for sharing...


Oct 05, 2008 at 02:03 AM
dfresh
Offline
• • • •
Upload & Sell: Off
p.1 #16 · p.1 #16 · 17-85 Exposed


Cool stuff!


Oct 05, 2008 at 02:30 AM
sbv20
Offline
• •
Upload & Sell: Off
p.1 #17 · p.1 #17 · 17-85 Exposed


Hey guys thanks for all the positive comments, glad everyone enjoyed.

Now that I've done it, I think I could've reassembled it with a replacement part, but only if I had kept thorough track of what went where. Also, I totally stripped at least 3 screws in the process. Overall, the inner workings were a bit more complex than I expected, but it was a nice linear process taking it apart.

Yes, I'm serious about that being the last photo before the aperture stuck. It's the Arab-Islamic museum in Paris. The apertures open and close to regulate the light inside. It's mostly just a cool dynamic thing to keep people interested, I think:







Oct 05, 2008 at 02:35 AM
kahren
Offline
• • •
Upload & Sell: Off
p.1 #18 · p.1 #18 · 17-85 Exposed


have you tried taking the same picture with another lens?




Oct 05, 2008 at 02:42 AM
stan_g
Offline
• •
Upload & Sell: Off
p.1 #19 · p.1 #19 · 17-85 Exposed


sbv20 wrote:
The IS mechanism, really cool:
http://samboyko.com/files/fm/17853.jpg

-Sam



Was this a "hand held shot"?

Thanks, I really enjoyed this alot
Stan



Oct 05, 2008 at 02:43 AM
Gil_W
Offline
• • •
Upload & Sell: Off
p.1 #20 · p.1 #20 · 17-85 Exposed


I like the idea of the apertures closing with the sunshine. Sounds good for summer.
The outside border apertures have the same number of blades as your 17-85! It's the 6 bladed aperture curse!!!

Amazing coincidence!
Gil



Oct 05, 2008 at 02:58 AM
1
       2       3       4       end




FM Forums | Canon Forum | Join Upload & Sell

1
       2       3       4       end
    
 

You are not logged in. Login or Register

Username   Password    Reset password