【Excellent Condition/Rare】Nikon Double Cable Release AR-4 (For Bellows Photography) ※ I am not very knowledgeable. I will rely on AI and try to explain as much as possible. Please check the photos carefully! 【Product Description】 This is the Nikon double cable release "AR-4" for bellows photography. It is a Nikon system accessory for linking the aperture mechanism during macro photography. It has been stored in a camera equipment shelf for many years. Although it is an item of age, the wire movement is smooth, and the pins at the tip operate without problems with button operation. 【Product Details】 ・Manufacturer: Nikon ・Model Number: AR-4 ・Purpose: Automatic aperture linkage for bellows photography ※ Unlike regular releases, this is a professional item used with Nikon's close-up systems (bellows, etc.). 【Condition】 ・Operation: Confirmed. The two-pronged tip operates in conjunction when the button is pressed. ・Appearance: I think it is in relatively good condition for its age, but please check the photos for fine scratches, etc. ・Other: The accessories are all that are shown in the photos. I would like to sell this to someone who understands used camera accessories and loves Nikon's old systems. Instant purchase is OK. Please understand that it is an old item and is sold as is. I will pack it carefully and ship it.