Mantis in IR

[Doug A]

Taken last July with the Pentax K-01 mirrorless APS-c camera converted to full spectrum by Szabo. Used Pentax DFA100 macro and Pentax ringflash. F11 1/180 with Hoya R72 filter.

 

A little surprised there isn't any false color. Looks more like 850nm IR to me. Perhaps it is because there isn't any sky. Photographed last season . Still processing some images. 

 

Thanks for looking,

Doug A

[Andy Perrin]

Cool! I got one myself in my very early days in IR (circa 2012!). This was taken with a modified iPhone 4 with an R72 on it, converted to monochrome after the fact because at that time I literally didn't know you could white balance an image...

 

[Doug A]

@Andy Perrin impressive capture. Didn't know iPhones could be converted to IR. 

 

Thanks for sharing,

Doug A

[Nate]

Nice Mantis shots! A little early here for those guys, but I see them a lot when they are out. @Doug ANice to see some one else used Isaac for conversions, he did both my cameras.

[Andrea B.]

The mantis eyes are interesting in IR. Not sure what I was expecting though. 

 

Frosty blue and white looks OK for an R72. I'm guessing the restricted subject area and the use of flash could affect things? It is OK to boost saturation a bit, if that suits the photo. 

 

Maybe we should put this Mantis fellow in the Fauna section?

[Doug A]

@NateIsaac did a good job converting the Pentax K-01. I might have him do another. 

 

@Andrea B. I didn't even think about posting this in Fauna. Feel free to move it if you want. I will investigate IR flash more when spring finally arrives. 

 

Thanks,

Doug A

[Daniel Csati]

Nice photo! Iphones are usually very bad at seeing infrared. Surprisingly in the laser lab most phones can perfectly see only a few watts of infrared lasers, but iphones can't even see 600W. I suspect some software trick going on with them

[Andy Perrin]

Daniel, my iphone was converted. The case had a built-in IR cutting window. Without that window it did fine. If you want to “free” your iphone, replace the rear with one that is IR-friendly. I think it would be difficult with a modern iphone but the above was made with converted iphone 4.

 

I doubt there is any software trick involved, just hardware that guarantees no infrared light ever makes it to the sensor.  

[Daniel Csati]

3 minutes ago, Andy Perrin said:

 

I doubt there is any software trick involved, just hardware that guarantees no infrared light ever makes it to the sensor.  

I'm an Android type, but I doubt that it is possible do this good non-commercial short pass filters :D Thats like OD6 required at least to block all the light at 600W from a small spot. 

[Andy Perrin]

First, I’m not sure I believe you about the laser?
 

Second, I converted the above phone myself and that was definitely what was preventing the infrared light from making it to the sensor. You can see I got a perfectly adequate IR photo from it after conversion. 
 

Finally, even if the laser was 600W, the reflection certainly isn’t, and only a fraction of that ever hits the phone. And OD6 blocking is not that hard to do in IR. Plenty of safety goggles manage it. Apple can definitely manage it!