Ellis Vener , Jan 10, 2017; 04:07 p.m.
I have tried a few different pieces of equipment and techniques to do this over the years.
Here is my current set up Canon 5DS (full frame) Nikon PB-6 bellows Rodenstock APO-Rodagon D 75mm f/4 lens Nikon PS-6 film holder Savage Luminous PRO LED panel (set to full brightness and 5600K)
All of this (bellows rig and light) are mounted on a single long rail to keep everything aligned
For your APS-C format camera I recommend you change the lens to the Nikon 55mm f/2.8 AI-S Micro-Nikkor
A quick overview of my technique
Shoot raw and manual exposure mode.
Use the PS-6 movable stage to shoot the slide in overlapping quadrants
Bracket exposures from each quadrant from -2 to +2 in one strop increments and combine using a mild HDR Technique
Stitch the four quadrants together.
For the HDR and Stiching software I am using Lightroom cc 2015.8's Photomerge tools.
Once combined I use lightroom's develop tools to make any adjustments