Hello marklori43, The factory service centers use a tiered pricing structure for repairs based on the type of repair that is needed on the equipment. The tiers for that camera are as follows: Minor = $199 Standard = $429 Major = $669 Unfortunately, I do not know what tier this particular issue w Either spend a few dollars sending it to canon for a estimate, or sell it on ebay as-is and upgrade to a 5D MK IV. The newest APS-C cameras with DPAF may give you what you want, and cost less. I have a 5D MK IV, but defer to my SL2 except for shots that only the MK IV can do right. ••• 6. As I mentioned in my article Stepping Up to the Mark-III, Canon’s third incarnation of the EOS 5D, the Mark III, still lacks a proper eyepiece blind or eyepiece shutter. This really should be standard on a professional camera in this price range and seems like a pretty serious omission. Instead Canon have provided a rather inadequate piece Cost to replace shutter on 5D Mark 2 Canon EOS R8 13.5% Canon EOS R50 6.2% Sony a7R V 3.6% Canon EOS R6 Mark II 2.4% Sony a7 IV 1.2% Fujifilm X-T4 1.1% Sony a7S The Canon 5D Mark IV's dynamic range still lags behind the class-leading Nikon D810 at low ISOs with the D810 managing almost 14.8 EV at its lower base ISO setting of 64, however the 5D Mark IV If there is dirt or dust that cannot be removed by following the procedure above, please refer to Manual Sensor Cleaning (EOS 5D Mark IV). REFERENCE Normally, the Self Cleaning Sensor Unit will eliminate most of the dust that may be visible on captured images. Basically on a 1DX II, the focus system links the metering to the ability to follow focus BECAUSE the 1DX II has a ton of metering points. The 5D III, 5Ds, and 5DsR do not have nearly as many (but the 5D IV does). So on the 5D III, s, & sR the ability to track subjects just isn't linked to the metering -- but it's still a very good system. I would find out what a shutter replacement cost is with canon, then take 1.5x of that and add it to the purchase price. If that number is still a good deal, then go for it. It is one of canons best cameras ever. If you don’t ever have issues, great, you got an outstanding deal, and if you have to send it in, you have already budgeted for it. 1. Open the cover. Slide the cover as shown by the arrows to open it. 2. Insert the card. The camera-front side slot is for a CF card, and the camera-back side slot is for an SD card. The CF card is [] (Card 1) and the SD card is [] (Card 2). With the CF card's label side facing you, insert the end with the small holes into the camera. My Canon 5D Mark IV’s main dial was hit and miss. It started to become a real nuisance and I didn’t want to replace the camera given it still has a shutter c Snzed.