TriX Loc: Raleigh, NC

Motorola has been building high quality commercial radios for a very very long time, and their longevity is excellent even though the protocols may have changed. Many Motorola base stations that are decades old have been successfully repurposed as 24x7 ham radio repeaters.

larryepage Loc: North Texas area

You are correct about aftermarket batteries. But the very good and very popular JEDI family (HT1000, JT1000 and others) was largely orphaned by the unavailability of NIMH batteries, at least in this neck of the woods. This was especially problematic for those of us requiring Intrinsically Safe systems, where about 90% of the compliance revolves around the battey.

hogesinwa Loc: Dalyellup Western Australia

Yes, had a Minolta X-700 and backup X-300 from about 1973 on. Plus 2 x Eumig Nautica 8mm Underwater movie cameras.
I am the finance centre in my household so I'm the one that will be irritated if I pay over-the-top for a model that retails for a vast discount shortly after shelling out full asking price.

BebuLamar

There were no X-700 or X-300 in the 70's.

BebuLamar

I paid $2730 for my Nikon Df more than 5 years ago and I think the price is still the same today. No vast discount.

loperR Loc: Medina ,Ohio

That's what I thought.

hogesinwa Loc: Dalyellup Western Australia

I went back and checked. I had the 700 on my first trip to Bali in 1981. Also had the Eumigs before then because I have underwater footage from Bali 81 and before on Rottnest Island. My first scuba dive alone was 1/1/80 so I didn't have them before that.

I have a lot of shots from my first trip to Singapore in 1976 but can't remember what I used. I thought it was the Minolta but must have been something prior to that.

amfoto1 Loc: San Jose, Calif. USA

Well, let's see.... the 5D Mark IV was introduced in the Fall of 2016.... so it's just about a 2.5 year old model now.

The 5D Mark III that preceded it was intro'd in the Spring of 2012.... so it had a 4.5 year "life".

The original 6D also had a full 5 year product life and the 6D Mark II is closing in on something similar.

The original 7D also saw a full 5 years on the shelf and the 7D Mark II will soon be heading into it's 5th year.

And the 5DS/5DS-R are just shy of their 4th birthday.

So I suspect 5DIV will be around for a year to two years longer, if they hold true to form. Plus, Canon has signaled in recent interviews and their annual report that their focus is going to be more on mirrorless, less on DSLRs. Canon aren't going to let DSLRs slide, they're still the bulk of sales. But I suspect new DSLR models will be introduced at a slower pace and there may even be some reduction in the number of DSLRs Canon offers in the future, while their list of MILC models grows.

TriX Loc: Raleigh, NC

👍👍 Good data, and I didn’t even think twice when I traded up my 5D3 for a 5D4 last week. It delivers the performance and features I need, and as long as it works or can be repaired, I could care less what the new product cycle is - it’s an excellent body. My only regret is that I really couldn’t justify keeping both as I don’t shoot weddings anymore, and I really loved the 5D3 - you can get really attached to a fine tool that serves you well.

rmorrison1116 Loc: Near Valley Forge, Pennsylvania

It kind of boils down to wanting vs needing. Do most people need the super detailed resolution of the 5Dsr? No. But once you've seen what it see's, you may definitely want one.

When it first came out, I had no intension of getting one, and my thirst for detail was still quenched by my 6D and 7DII. Then a friend, who worked at a camera store, convinced me to try a 5Ds for a few hours. Among the photos I took was a Red Tail Hawk at a distance of about 30 feet. The detail in the images was amazing. You could clearly see the individual barbs in the hawks feathers. I didn't need this camera but I sure wanted one, just needed a good excuse (rationalization) to buy one.
My birthday and Christmas are just over a month apart, so, happy birthday/happy Christmas to me.
I quickly learned that as great a camera the 5Dsr is, it's not necessarily an ideal every day shooter. For one, its image files are quite large. The 5Dsr isn't really an action camera either. It likes, and pretty much demands, really good light. Not exactly the camera for use in less than ideal lighting conditions as there's really no cranking up the ISO. So, now I use my 5Dsr for more specific shooting and my 5DIV for every day shooting. I usually hang the long lenses on my 80D.
I read somewhere that Canon is planning on replacing the 5Ds/r with a super high resolution mirrorless with no low pass filter, somewhere in the 60 to 75 megapixel range. That would be pretty cool but they really need to seriously concentrate on reducing the file sizes. the 4K files my 5DIV produces are far, far larger than they could be. Come on Canon, how about some realistic compression software. You guys are smart; it's just mathematics.