Used Nikon SB-15 Speedlight Flash for MF Cameras Video Accessories you can use its USB-C

you can use its USB-C port instead

but you can shoot in more available light situations than you could with a slower lens

Promaster Dovetail Nodal Slider - 140mm

1 Among full-frame compatible fast-aperture F2

while maintaining the highest-class optical performance

Used Nikon SB-15 Speedlight Flash for MF Cameras Video Accessories you can use its USB-CThis Used Nikon SB 15 Speedlight Flash for MF Cameras is in Excellent condition and includes a 100 day warranty. Item pictured is the actual item for sale. Items in Excellent condition are between 75 89% of original condition. These items are in very good condition and work as intended. They may show moderate cosmetic wear consistent with age. The glass will be clean.