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IR Part 2
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PostPosted: Thu Jun 02, 2011 5:44 pm    Post subject: IR Part 2 Reply with quote
I think I have done enough IR for a while now. It might be time to drift in to the visble part of the spectrum again. I figured I had material for one more thread though.
Apart from the Nikkor 3.5/28 (which I think is a great IR lens) I have also tried to use the 2.5/105. A bit more difficult to get the focus right on the 105 but it is sharp also in IR.

This one is with the 3.5/28











Sheep in IR are still just sheep. Looks a bit cool wiht the light vegetation around them I thougt. The first one is a bit back focused. The second one is close to a 100 Crop. Both are with the 2.5/105












Cows are also just cows. Nothing dramatic happens in IR.




This one got quite noisy so it lost a bit sharpness to "Noiseware"





3.5/28 again










Abandoned farm house


PostPosted: Thu Jun 02, 2011 11:12 pm    Post subject: Reply with quote
Shots 1,5,6 are the money shots, IR does such a nice job with nature scenes


PostPosted: Thu Jun 02, 2011 11:38 pm    Post subject: Reply with quote
Just WOW, WOW and WOW I love them all!


PostPosted: Fri Jun 03, 2011 6:10 am    Post subject: Reply with quote
Nice look to those pics.

I've always found that water comes out black though, so I was intrigued to see some detail in your shots.


PostPosted: Fri Jun 03, 2011 6:44 am    Post subject: Reply with quote
Very very nice.....! Very Happy


PostPosted: Fri Jun 03, 2011 7:29 am    Post subject: Reply with quote
Well done!!!!
Love IR!!
Very Happy


PostPosted: Fri Jun 03, 2011 8:11 am    Post subject: Reply with quote
Attila wrote:
Just WOW, WOW and WOW I love them all!


+1. A world unknown to our human eyes.


PostPosted: Fri Jun 03, 2011 8:35 am    Post subject: Reply with quote
Thanks a lot guys! Your comments are much appreciated.
I agree that landscape photography is the part where IR excels. Combine water, clouds and vegetation, and you usually end up with something pictorial.
I think it's the experimental part that's intriguing. Yoy newer really know the outcome of a shot. Also the post processing can give different character to a picture depending on how it's done.
In most of these pics I went for the blue sky concept by mixing the red and blue channel, but monochrome is perhaps a more correct way of treating the images.

Last edited by Sven on Sat Jun 04, 2011 6:56 pm; edited 1 time in total


PostPosted: Fri Jun 03, 2011 12:28 pm    Post subject: Reply with quote
Very nice pictures you have there Sven. The more i see IR, the more i like it. Sadly my Nikon D7000 has one of the strongest IR blocking filters so no joy for me Sad

I'm considering a D50 or D70 just for IR. What filter did you used on lens?


PostPosted: Fri Jun 03, 2011 1:46 pm    Post subject: Reply with quote
Very nice!
Today I ordered cheap IR filter, I wonder what will be in NEX


PostPosted: Fri Jun 03, 2011 5:20 pm    Post subject: Reply with quote
IAZA wrote:
Today I ordered cheap IR filter
I hope you didn't waste your money. Usually the cheap filters from the bay aren't anywhere near their quoted transmission values.

The above looks very much like a 720nm high-pass filter, but probably in front of the sensor, not on the lens, since it is a converted D100. Very nice - I love IR photographs.


PostPosted: Sat Jun 04, 2011 1:41 pm    Post subject: Reply with quote
Thanks for your comments.

Yes, it's a 720 nm but it's on the lens. "IR converted" is perhaps is a bit misleading. I just took away the IR blocking filter and replaced it with a piece of glass.
I would have prefered to have a filter on the sensor but the ones I have located so far are more expensive than the camera.

I think a D70 is a good choice for IR (just as the D100) since the IR blocking is not very effective on them, so they can be used even without removing the filter. I suspect the D50 is similar in performance.
It's also quite easy to remove the filter on a D70. I have done it on both D100 and D70 and I recall the D70 being easier. There are good instructions to be found on the net.
I have also tried my D200 for IR but with limited success. Long exposure times even in bright conditions. A tripod is a must.


PostPosted: Sat Jun 04, 2011 2:12 pm    Post subject: Reply with quote
Great series. I'll look out for a cheap used D70. IR photography looks like a lot of fun (and hard work and practice of course)


PostPosted: Sat Jun 04, 2011 7:03 pm    Post subject: Reply with quote
Yebisu wrote:
Great series. I'll look out for a cheap used D70. IR photography looks like a lot of fun (and hard work and practice of course)


Thanks!
I do find it to be a lot of fun (maybe not so much hard work Smile ). Gives me a chance to visit old venues previously captured in visible and capture them in a different way. The only apparent difficulty is that the viewfinder is black so the aiming can be a little off from time to time.


PostPosted: Sun Jun 05, 2011 12:42 pm    Post subject: Reply with quote
Sven wrote:
Thanks for your comments.

Yes, it's a 720 nm but it's on the lens. "IR converted" is perhaps is a bit misleading. I just took away the IR blocking filter and replaced it with a piece of glass.


Is this replacement a very difficult or risky job to do ? So far i do IR with some old compactcamera's. Converting something like a D100 or a D70 looks perfect for some further experimenting.

Stunning good pictures by the way


PostPosted: Sun Jun 05, 2011 5:57 pm    Post subject: Reply with quote
Toeteraar wrote:
Sven wrote:
Thanks for your comments.

Yes, it's a 720 nm but it's on the lens. "IR converted" is perhaps is a bit misleading. I just took away the IR blocking filter and replaced it with a piece of glass.


Is this replacement a very difficult or risky job to do ? So far i do IR with some old compactcamera's. Converting something like a D100 or a D70 looks perfect for some further experimenting.

Stunning good pictures by the way


Thanks!
There is a certain risk involved with taking the camera apart to the extent needed for gaining access to the sensor. I wouldn't want ot do it on someone elses camera.
A workbench with good light and reasonably dust free is a good start. Precision screwdrivers of good quality is also necessary. Some screws are tightened quite hard and an inferior screwdriver can easiliy wreck the head of a screw.
I found that re-conncting the small connectors was the most irritating part. Would have needed smaller hands for that job.
Otherwise it's not especially difficult.

If you get a D100 or a D70 you can use them for IR without taking away the IR blocking filter. The exposure times will be reasonable anyway.


PostPosted: Mon Jun 06, 2011 11:22 am    Post subject: Reply with quote
Thx for the info Sven.

Can D70 store custom WB? What lens on the wide or ultra wide end would be good choice for IR? Hot-spots free Very Happy


PostPosted: Mon Jun 06, 2011 6:00 pm    Post subject: Reply with quote
mastazeko wrote:
Thx for the info Sven.

Can D70 store custom WB? What lens on the wide or ultra wide end would be good choice for IR? Hot-spots free Very Happy


Not sure about the WB on D70. I don't own one at the moment.
Regarding IR performance of Nikkor lenses I would recommend Björn Röslätts lens evaluation page. He also rates the lenses for their IR performance http://www.naturfotograf.com/lens_surv.html#top1

The lens I normally use is an old AI converted 3.5/28 which is great both in visible an IR.
The widest Nikkor i have is the 2.8/24 and for some reason it doesn't mount on the D100. The test shot below is with the 24 but just held in position in front of the camera. A bit soft I think, but that could be due to the way I used it.
While I was at it I also tested my 1.8/85 for IR (test shot 2). Looks promising I think.






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