Login or Join Now

Upload your photos, chat, win prizes and much more

Username:
Password:
Remember Me

Can't Access your Account?

New to ePHOTOzine? Join ePHOTOzine for free!

Like 0

IR black and White photography

Join Now

Join ePHOTOzine, the friendliest photography community.

Upload photos, chat with photographers, win prizes and much more for free!

Members Only

You must be logged in or registered to join a group
Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
3 Jul 2010 - 8:34 AM

As some will know i'm quite like B and W photography. I've stumbled on a couple ofphotographers who specialise in IR monos. I don't want to go to the cost of getting a body converted, has anyone had success with IR filters on say a D700. I know all cameras have diffeent sensitivities to IR, what about focal length shifts?

Any one with any suggestions or images to look at would be most welcome

Sponsored Links
Sponsored Links 
3 Jul 2010 - 8:34 AM

Join ePHOTOzine for free and remove these adverts.

discreetphoton
discreetphoton Site Moderator 93453 forum postsdiscreetphoton vcard United Kingdom20 Constructive Critique Points
3 Jul 2010 - 8:43 AM

I've not had great results from nikon digitals for IR, Nick. The internal filter just seems to be too effective, and it's really hard to get any sort of definition in your shots.

Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
3 Jul 2010 - 9:13 AM

Thanks David, what wavelength have you tried with the filters?

Btw I'm not too concerned about long exposures

DuncanDisorderly

Nick - all very good questions.....
I've always used Hoya R72 filters.
I know the D70 was VERY good with an IR filter; trouble is the modern cameras have much better internal IR filters and if you cut out the visible spectrum you end up with almost nothing.
My 5D2 the internal IR filter is so good that even in full sunshine I get 4s at ISO 400, f11, on overcast days 4 mins is a more typical at ISO 100 and I've occasionally suffered 20min exposures.
You need to shield the eyepiece to stop stray light entering - Camera straps often have a blanking cap on them, use that.
Lens design seems to affect the image - some lenses produce a bright spot in the centre.

As you have already mentioned - focussing is the real sod.
It is not the normal focal distance.
Auto focus and live view do not work.
The only technique that seems to work for me is to jack up the ISO a bit to take shots at relatively short exposures, tweaking the focus based on inspecting the image; don't worry about the noise - then when everything looks good put the ISO back to base ISO and go for it!
This is a also good way of estimating the final exposure as simple maths keeps the overall exposure the same; each stop less ISO doubles the length of time the shutter needs to be open.

Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
3 Jul 2010 - 10:14 AM

Thanks Duncan, some excellent pointers

Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
3 Jul 2010 - 5:01 PM

Has anyone any experience using an R72 filter?

thewilliam
3 Jul 2010 - 8:05 PM

If you want good IR from a Nikon-mount body use a Kodak DCS760.

Most sensors are sensitive to infra-red, so there has to be an IR blocking filter somewhere. In the 760, it's just inside the lens throat and easily removed. Although only 6 MP, it knocked the Nikon D1X into a cocked hat and gave the D2X a run for its money. Better still, they're dirt-cheap and I have a couple gathering dust.

I played with IR landscape and used a Hoya R72 filter. It gives very good infrared but you have to remove it for viewing.

Last Modified By thewilliam at 3 Jul 2010 - 8:07 PM
Paul Morgan
Paul Morgan e2 Member 1315370 forum postsPaul Morgan vcard England6 Constructive Critique Points
3 Jul 2010 - 11:09 PM

Unless you can get hold of an old D70 a conversion would be the only sure way to go.

these are excellent.

Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
3 Jul 2010 - 11:40 PM

Thanks for that, just checked eBay not one for sale. I do have an old D80. Tho 250 for a conversion does seem excesive.

Last Modified By Nick_w at 3 Jul 2010 - 11:41 PM
thewilliam
4 Jul 2010 - 12:09 PM

The great advantage about conversion is that you can view normally because only the sensor will be infra-red. The R72 filter is pretty close to black.

Last Modified By thewilliam at 4 Jul 2010 - 12:09 PM
Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
4 Jul 2010 - 6:39 PM

Can anyone recommend someone/ company who do the conversions. Else an online tutorial on converting a D80.

CaptivePhotons
CaptivePhotons e2 Member 111548 forum postsCaptivePhotons vcard England2 Constructive Critique Points
4 Jul 2010 - 8:33 PM

I had my eye on this one for when my daughter gets fed up with her D40. I've no idea if the procedure is the same for the D80 though.

D40 IR conversion

Nick_w
Nick_w e2 Member 73879 forum postsNick_w vcard England99 Constructive Critique Points
5 Jul 2010 - 9:08 AM

Just looked how much it is for the filter for a conversion ... Gulp.

Maybe after the hols

Graham0602
5 Jul 2010 - 11:18 AM

Nick
Had my old D70 converted at Protech Photographic in East Sussex about 6 months ago. Think it was about 170 I paid - just looked at their website and can't immediately find their current prices.
I found them extremely knowledgeable and helpful .......
G

User_Removed
5 Jul 2010 - 11:57 AM

There is another, less expensive, way than having a dSLR body converted. Spend 10 on an old manual SLR and use IR film.

Add a Comment

You must be a member to leave a comment

Username:
Password:
Remember me:
Un-tick this box if you want to login each time you visit.