stormpetrel_geek_mode:
My DIY B&W proportional LED head for my Durst 139/138 enlarger
stormpetrel_geek_mode:
My DIY B&W proportional LED head for my Durst 139/138 enlarger
stormpetrel_geek_mode:
My DIY B&W proportional LED head for my Durst 139/138 enlarger