Trouble with anamorphic footage and adding TIFF / PNG overlay

[ironchef_marc]

I have this anamorphic RED footage in a squence (4320 x 3240 1:8)

When I export a frame and open it in PS, it is unsqueezed.(clicking the camera button and also tried export as tiff). I use this as reference to create a plate overlay. When I add my overlay back in my sequence in Premiere it looks fine until I start playback, it then looks stretched out.

[chrisw44157881]

see

https://helpx.adobe.com/premiere-pro/using/aspect-ratios.html

also, is enable maximum quality enabled on playback? and sequence settings?

you may need to convert your sequence and clip to square pixels to accomodate 1:8