Standard FX crop Z 8 NEfs measure 5504 x 8256 pixels and the file size of a reasonably detailed 8-bit TIFF in Adobe RGB(1998) is ~130 Mb.
4 shot and 8 shot pixel shifted files merged as a .NEXF open up in Photoshop at the HxW same dimensions and file size
16 and 32 shot pixel shifted files merged as a .NEXF however are twice as large: 11008 x 16512 pixels and the 8-bit file size is four times larger , 520 MB.

full frame ( reduced from 11008x16 512 pixels to 2000 pixels on the long dimension)

Full resolution (2000x2000 pixel) crop
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Ellis Vener
To see my work, please visit http://www.ellisvener.com
I am on Instagram @EllisVenerStudio
“It's not about the f-stop." -Jay Maisel
Don't be "a photographer.” Be photographing. (Paraphrasing William Faulkner's advice to writers.)
4 shot and 8 shot pixel shifted files merged as a .NEXF open up in Photoshop at the HxW same dimensions and file size
16 and 32 shot pixel shifted files merged as a .NEXF however are twice as large: 11008 x 16512 pixels and the 8-bit file size is four times larger , 520 MB.

full frame ( reduced from 11008x16 512 pixels to 2000 pixels on the long dimension)

Full resolution (2000x2000 pixel) crop
--
Ellis Vener
To see my work, please visit http://www.ellisvener.com
I am on Instagram @EllisVenerStudio
“It's not about the f-stop." -Jay Maisel
Don't be "a photographer.” Be photographing. (Paraphrasing William Faulkner's advice to writers.)