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 G-series Digital Cameras 
Thread started 18 Aug 2004 (Wednesday) 19:46
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

STICKY: Building a G-Series Infrared Camera

 
EOSFelix
Senior Member
Avatar
250 posts
Gallery: 6 photos
Likes: 17
Joined Jun 2010
Location: Rome, Italy
     
Jul 19, 2011 01:37 |  #91

submannz wrote in post #12780505 (external link)
Hi Felix,

Sorry for the delay in getting back to you. The G6 conversion is very easy, more easy than the guide on converting the g3. I was lazy in getting the correct thickness glass to replace the ir block filter, and used two pieces of microscope slide stacked on top of each other, which gave perfect auto focus so I didn't change it. If you have any more specific questions please feel free to ask and i will reply to you straight away.

Thanks submannz for your response.
I've modified succesfully my second hand G6 a couple of month ago!
Very cool images indeed...but I've some AF problems. In macro mode the AF works properly, but when I use the G6 in the normal situation I don't receive the AF beep confirmation, so I often have out of focus images.
Any suggestion for this issue? I have the IR filtrer directly on the sensor, could the problem depends on the IR filter tickness?

Thanks in advance for suggestions.
Bye,
Felix.


My name is Felice, but you can call me Felix...
CanonEOS5DIII | CanonEOS40D | CanonEOS7D | FujiFilm X-E1 | Tam17.50 | Sigma120-400 | EF17.40 4L | EF70.200 2.8L II | EF85 1.8 | 430EXII | LoweProComputrekkerAW | LoweProClassifiedAW160 | NG2140 | TamracVelocity9 |
http://www.fmphotospor​t.com (external link)

  
  LOG IN TO REPLY
submannz
Member
116 posts
Joined Sep 2003
     
Jul 19, 2011 04:13 |  #92

Hey Felix,

Yes if the thickness is not enough above the sensor it will only focus in the macro ranges automatically, with one microscope slide I had the same problem you mention here.

I have external IR filters to give me more options of the style of Infrared I can use based on the filter types. I typically used 720,760 and 850 filters.

I am certain if you buy a microscope slide and cut a piece off this and place this on top of your inplace IR filter I am sure this will fix your autofocus issue to focus 90% of the time, just one thing to note is the air between the filters may cause some banding in your photo's, I had this problem only after I cleaned all glass with iso alcohol.

I am about to convert a Powershot Pro1 in the next few weeks, it should give me better shots with wider angle.

Regards

Dan




  
  LOG IN TO REPLY
EOSFelix
Senior Member
Avatar
250 posts
Gallery: 6 photos
Likes: 17
Joined Jun 2010
Location: Rome, Italy
     
Jul 19, 2011 04:15 |  #93

Thanks again Dan for the precious info you gave me!


My name is Felice, but you can call me Felix...
CanonEOS5DIII | CanonEOS40D | CanonEOS7D | FujiFilm X-E1 | Tam17.50 | Sigma120-400 | EF17.40 4L | EF70.200 2.8L II | EF85 1.8 | 430EXII | LoweProComputrekkerAW | LoweProClassifiedAW160 | NG2140 | TamracVelocity9 |
http://www.fmphotospor​t.com (external link)

  
  LOG IN TO REPLY
submannz
Member
116 posts
Joined Sep 2003
     
Jul 19, 2011 05:06 |  #94

Your welcome Felix, let me know how you get on if you try it.




  
  LOG IN TO REPLY
steve40
Member
Avatar
188 posts
Joined Aug 2011
Location: Asheville, North Carolina
     
Sep 22, 2011 22:58 as a reply to  @ submannz's post |  #95

Here is a test shot with an unconverted G12, plus Hoya R72 filter. I set a custom white balance from a sheet of printer paper, in full sunlight with the filter on the lens.

I am going to do some more experimenting when I get the time, but for now the G12 seems to be a quite capable IR camera even unconverted. For those who want to know ISO was 200, mode AV=F4, shutter speed was about 1.6 seconds late afternoon. The camera is IR sensitive enough for the autofocus, and exposure metering to work just fine. Oh yes there was some exposure compensation used, so the red channel would not be over exposed -1EV.

By the way F4 was chosen because it is the sweet spot for the G12 lens, for the best combination of resolution and depth of field.

PHOTOBUCKET EMBEDDING IS DISABLED BY THIS MEMBER.
Photobucket sends ads instead of embedding photos from their free galleries.
Click the link (if available) below to see the image in a gallery page.

http://i293.photobucke​t.com …m80/steve40/IR_​Test_W.jpg (external link)

Steve40.
http://steveslandscape​s.50webs.com (external link)
Cameras: Canon G12, SX150 is, & A1200.
Darkroom & Printer: PhotoShop Elements 9, Canon Pixma iX6520.
Tripods: Manfrotto 190XPROB & Giottos MT 9251 + Several Heads.

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

138,353 views & 0 likes for this thread
Building a G-Series Infrared Camera
FORUMS Canon Cameras, Lenses & Accessories Canon G-series Digital Cameras 
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 Amy_Quinns
766 guests, 344 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

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.