Why us a lower RES. Camera ?

Can any one think a good reason to use a lower RES. Camera over a higher RES. Camera.

I have 2 Cameras now.

A New FLIR BX 320… Very nice to work with this unit.

And my 4 year old FLIR B2 back up unit. Very nice camera.

Can any one think of any type of work or project that a lower Res camera just may do a better job ?

Other then harsh condition that may damage a camera.
Like under a house or a very dirty work area.

Looking for reason to keep the older unit or sell it for what I can get out of it.

A back up unit is the best reason I have at this time to keep it.



I keep a back-up. Thermography is too important to my business to have a camera go down.