Critique Welcomed Trying Out The New Ir Filter

[Keith Hollister]

Got a Hoya 720nm IR filter to play with infrared on the cheap with the Fuji. The exposures are pretty long, but works pretty well as long as the wind isn't blowing the trees around.

These were taken at Silver Springs State Park in Ocala, FL. There is a pioneer village with historic buildings relocated from the surrounding area.

 

[Pete Askew]

Looks to working well Keith.

 

[Beth Carter]

nice, definitely didn't see this during my travels through silver springs. i'll have to add it to the list of places to visit. nice work with the ir filter, good detail in the leaves.

 

[Brian Moore]

Very nice, Keith. Does the XE2 (which I think is what you shot these with) let you see the composition with the filter in place?

 

[Chris Dodkin]

Liking that first shot especially Keith

Any issues with hot spots in the center of frame?

 

[Rob MacKillop]

I like these a lot, Keith. Good compositions of interesting subjects, and the IR filter really adds something. More, please!

 

[Julian de'Courcy]

For me interesting Keith. I am void of any usefulness about using these filters on digital cameras, so for me nice photo's and educational.

 

[Keith Hollister]

Thanks, everyone.

Chris - no hot spot on the 14. The 18-55, unfortunately, has a pretty strong one so it's out for IR unless I try to correct in post. The first one is the best in my opinion as well - the angle of the light was better and you get more glow to the leaves.

Brian - yes you can see through the filter via the EVF, but it is dark and a reddish amber. You don't have remotely enough WB control in camera. This where an EVF is great - on an OVF (DSLR) you couldn't see s**t.

Beth - the cracker village is in the part of the park formerly known as Silver River State Park. They have now renamed everything to Silver Springs with two entrances, similar to what happened with Rainbow Springs State Park.

Rob - I'm posting a couple more of the Springs & river themselves in different threads

 

[Keith Hollister]

For me interesting Keith. I am void of any usefulness about using these filters on digital cameras, so for me nice photo's and educational.

The main complicating factor with digital cameras and IR is most recent ones have fairly strong high pass filters on the sensor to block IR in order to prevent false color problems (Leica M8 being a notorious example of what happens with a wideband sensor). The Fuji X-Pro and X-E1 had reasonable IR sensitivity but the X-E2 (and I guess the X100S and X-T1) seems to be worse comparing my exposures to those reported from X-Pro1's. I'm guessing this might have to do with the effects IR might have on the PDAF sensors incorporated into the sensor on the newer Fuji's. The result is really long exposure times (8-15 sec @ f/8 & ISO 800).

 

[Julian de'Courcy]

The main complicating factor with digital cameras and IR is most recent ones have fairly strong high pass filters on the sensor to block IR in order to prevent false color problems (Leica M8 being a notorious example of what happens with a sideband sensor). The Fuji X-Pro and X-E1 had reasonable IR sensitivity but the X-E2 (and I guess the X100S and X-T1) seems to be worse comparing my exposures to those reported from X-Pro1's. I'm guessing this might have to do with the effects IR might have on the PDAF sensors incorporated into the sensor on the newer Fuji's. The result is really long exposure times (8-15 sec @ f/8 & ISO 800).

Thanks for the explanation Keith, very much over my head but somewhere to start looking.

 

[Nick Lukey]

Reminds me I have a Nikon D70 with IR conversation, must give it a run out one day soon.

 

[Chris Dodkin]

Keith - If you set film type to B&W , try the B&W filter versions as well, (might be the green filter in camera) - your LCD/EVF will show a decent B&W image to comp with, of course the RAW will be full color to process later

 

[Ivar Dahl-Larsen]

thank you for the two good pictures and the info Keith, I swear that the builders of these two cottages stem from Scandinavia, preferably Norway as Danish do not make these type of houses / cottages. Not that it matters much though. Not to mention Swedes.