Panasonic Lumix DMC-FZ300Panasonic FZ80/FZ82 ReplyReply with quoteReply to threadComplain KCK14•Senior Member• Posts: 1,511 Re: Cant change Aperture on Nikon d3400 in manual mode In reply toseamusmdaniel•Jul 22, 2017 On that level Nikon, you can not change the aperture once you ...