With the 17-55 f2.8 used one, you can use it for 3 years and sell it for what you paid for it. Try that with a Sigma....not so much

The Canon 17-55 F2.8 is a stellar lens. It is probably the best APS-C lens out there. Also sticking with the Canon lens you give you the option to correct for lens aberrations in camera using Canon lens profiles

I only have 3TB drive space on my laptop so I copy all my new files to laptop and have directory structure by camera>date-location>category subdirectories with say bird names etc. When I start to run out of space on my laptop I move them to one of my USB drives. I do not leave these drives connected to my laptop as it would look like an octopus. When I quit using LR at some time in the future then I can still find my files quickly using file manager search. I need a structure that is not dependent on LR

I only use Windows File Manager to copy all my pictures from the camera cards and then to move pictures around or delete bad ones etc. I have over 500,000 pictures so as drives fill I move the pictures where I want them. This of course confuses LR so when I want to use LR I open it in the Library window and drag and drop whatever pictures I want to edit and then export the finished ones out of LR and then store the exported pics where I want them. I periodically delete the catalog because if I try and drag and drop a picture that I edited before it won't show up in the Library pane. For serious pictures I use PS but also have several other editing programs and I don't need LR to tell me where my pictures are. I know most of you are thinking I am crazy not using the catalog but I don't have the hours of time to waste while LR imports pictures from my camera cards

I agree on that. The OM-1 is nicer than the OM-2 or later since they don't depend on batteries. I bought my original one in 1981 at a pawn shop for $50. It was the camera of choice for astrophotographers since you could leave the shutter open as long as you wanted without batteries. Some exposures are 90 minutes long

You didn't buy it, you stole it at that price. As mentioned above these cameras always need a new light seal kit. The best ones are from Jon Goodman. jgood21967@aol.com There are cheaper ones but not better ones. His instructions are included and easy to follow. Look thought the viewfinder and if the bottom part looks funny it is the foam around the prism eating the silver off the prism. You need to get rid of the foam before this happens. If you are handy there are videos about how to do it. Others take it to a repair shop. The original mercury batteries are extinct so you can get Wein cells as a replacement. Other option is get a diode added. Again Utube works for that. Fix it up and use it. They are the smallest 35 mm professional camera of that era. I have 11 of them in various versions.

My guess is the card is not a Sandisk Extreme Pro. If it was you wouldn't be having these problems

Use single focus point in the center. If you use a group of focus points it will pick whatever is closed (for example the deers right ear tip instead of the center of its eye

Use AV mode and F8 and ISO 400

Totally agree. The 1/4000 at ISO 2000 is totally a waste of image quality potential. With that lens/camera go F8 and ISO 400 and if it gets below 1/50s for stationary subjects then increase ISO a bit. F8 will give you a better depth of field than say the F5.6 at the long end with that lens.

People buy expensive glass optics and shudder at the term plastic lens. Then they put an expensive Lee ND grad filter in front of it and think nothing of it. The Lee ND filter is made from resin (AKA plastic).

The 100-400 ii is an amazing lens and is my go-to travel lens on my 7D2. I shoot mostly birds and wildlife with it. The default settings I use are F8 ISO 400 AI Servo IS mode 3, and +1/3 Ev to make sure eyes are not grainy looking. Can always reduce by 1/3 after in post if needed. If you think you need one shot as a try, it is easy to switch if you assign the DOF preview button to toggle between One shot and servo. Just hold it down and it toggles to other one. For macro, it's not the lens or camera or you that is the problem. At 400 mm with your 5D4 and 1m from subject at F11, the depth of field is 2mm which is the size of the wasps eye. Even at F16 it is only 4 mm so it is VERY shallow. So the actual focus point for macro is super critical and if you need more depth of field you will need a tripod and use live view manual focus and focus stack several shots. Not so easy on live creatures. As far as BBF, some like it and some dont- personal preferences. I don't use it because you sit there for 2 hours watching a bird or animal and you have gloves on an trying to keep your fingers on two buttons just does not work. Not to mention severe finger cramps. I assign that button to a manual setting for BIF with auto ISO and 1/1600 s and 5 focus points so as soon as a bird flies I use that button and track the bird. Good luck and keep shooting. Try different thinks and see what works for you

I still shoot 35 mm and medium format but only for black and white because I do my own developing and printing. Color film development and printing is getting hard to get decent quality without sending it away. I have a Canon 5DS-R that blows you away with the detail you can get with 50.6 MPix. One of my film cameras is a Canon 7N which uses the same lenses and is probably the best deal around for used film cameras. The 7N was made at the end of the film era and a lot of people that bought them only put a couple of rolls of film through them before switching to digital. I bought a mint condition one with lens and factory battery grip for $60. I bought a couple more for $80 ea. They have autofocus and all the goodies like a DSLR but record it on film. Easiest film camera there is to use. Good luck and don't be afraid to keep using film.

It would cost $700 to rent a Nikon D500 and 80-400 lens for a month. An Ex+ Canon 7D2 used is $1035 at KEH. Clear choice to me..

It all comes down to what you intend to shoot. I have a 60D, 7D, 7D2, 1DX2 and 5DS-R. Most of my shooting is with the 7D2 and a 500F4 with 1.4x TC because I shoot a lot of birds. For landscape I use the 5DS-R and my 1DX2 is just my backup camera. I will upgrade to the 7D3 as soon as it comes out because my 7D2 has 165000 shutter count. My 7D has over 200k on it and has been converted to infrared by Lifepixel. All great cameras but each has a purpose.