Luminous Landscape Forum

Equipment & Techniques => Digital Cameras & Shooting Techniques => Topic started by: emreguclu on November 28, 2016, 02:44:44 am

Title: Full Spectrum vs Conversion (stacking filters)
Post by: emreguclu on November 28, 2016, 02:44:44 am
Hello Everyone,

I am moving towards the IR photorography. I will be using sony alpha mirrorless line and need input on the following concerns.


Thanks a lot for your comments,
Emre
Title: Re: Full Spectrum vs Conversion (stacking filters)
Post by: Telecaster on November 28, 2016, 04:40:20 pm
From my POV the main drawback with a full-spectrum conversion is that you'll always be using a filter of some sort. I had a full-spectrum Fuji bridge cam for awhile about a decade ago, and found shooting with no filter to result in soft-ish images with muddy tonality. I don't recommend sans-filter pic taking if you're considering that as an option. On the plus side full spectrum lets you use the same camera (with appropriate filters) for visible-spectrum, IR with various cutoff frequencies and even (with some sensors anyway) UV photography.

You can certainly go for a shorter wavelength cutoff with your conversion too, like 720nm, and then use lens filters that cut at longer wavelengths below that for a stronger IR effect. I don't know of any problems in doing this other than the usual potential stuff associated with putting more glass surfaces between your subject and your sensor.

-Dave- (edit: removed double signature)
Title: Re: Full Spectrum vs Conversion (stacking filters)
Post by: emreguclu on December 02, 2016, 06:19:52 pm
From my POV the main drawback with a full-spectrum conversion is that you'll always be using a filter of some sort. I had a full-spectrum Fuji bridge cam for awhile about a decade ago, and found shooting with no filter to result in soft-ish images with muddy tonality. I don't recommend sans-filter pic taking if you're considering that as an option. On the plus side full spectrum lets you use the same camera (with appropriate filters) for visible-spectrum, IR with various cutoff frequencies and even (with some sensors anyway) UV photography.

You can certainly go for a shorter wavelength cutoff with your conversion too, like 720nm, and then use lens filters that cut at longer wavelengths below that for a stronger IR effect. I don't know of any problems in doing this other than the usual potential stuff associated with putting more glass surfaces between your subject and your sensor.

-Dave- (edit: removed double signature)

Thank you very much Dave! Much appreciated.
Title: Re: Full Spectrum vs Conversion (stacking filters)
Post by: vrkaya on December 14, 2016, 06:28:27 am
I went with Full Spectrum on my Mark II and purchased Visible Spectrum and IR590 filters. I like the option to shoot either and absolutely love IR shooting now.
Ron
Title: Re: Full Spectrum vs Conversion (stacking filters)
Post by: David S on December 14, 2016, 10:41:00 am
I went deep IR on my Fuji XE-1 and am very pleased.

Dave S