In fact i think I can do a short resume/parody of the history of 35mm cameras from the 1950s onwards:
1954
Leitz: Ha! We have the Leica M3, we're the BEST in der welt! Nobody can top the German optical industry:
1957
Canon: Hmm... we should attempt to better Leitz lenses, let's start patenting new lens designs
Nikon: We should be able to create a better camera than the Leica M3, let's create the Nikon SP
1958
Leitz: Ha! Japanese kids making toy cameras! We're the BEST
Zeiss: Ha! Japanese kids making toy cameras! We're the BEST
Voigtlander: Ha! Japanese kids making toy cameras! We're the BEST
Rollei: Ha! Japanese kids making toy cameras! We're the BEST
Nikon: Asahi Pentax is launching interesting SLRs. We should bet in the SLR, that is the future... Let's design the best SLR that could be made.
Canon: RANGEFINDERS are the best. But we know that Nikon is designing a SLR, let's release a SLR just so the world knows that we can do it as well as them. But don't devote so many resources, we need to focus on our rangefinders.
1959
Nikon: We really hit the spot with the Nikon F!
Canon: People will keep buying rangefinders, SLRs are a dead end.
Leitz: People will keep buying rangefinders, SLRs are a dead end.
1962
Canon: We have just released the 50/0.95 lens. People will keep buying rangefinders, knowing that the best lenses are only achievable in rangefinders. Also, SLRs have no good wideangles.
Nikon: Let's perfect the retrofocus wideangles, let's create the most complete line of SLR lenses.
German makers: Our sales are going down... Japanese lenses are improving in optical quality, the japanese are issuing lots of patents and their camera industry is cooperating together, we are going downhill!
late 60s:
Canon: We shall beat Nikon in the SLR business. Let's devote all our resources to build a better pro SLR and to beat their Nikkor optics in all fronts.
Leitz: Release the LEICAFLEX, we need to have a SLR, we are the best in the world!
Voigtlander: We're going to hell, let's merge with Zeiss-Ikon.
Yashica: Let's research the electronics side of cameras. That is our hope to compete in this market.
1970
Canon: We are the best, we shall triumph.
Leitz: Why nobody wants our Leicaflex?
Zeiss-Ikon-Voigtlander: Let's release lots of SLR cameras, who cares if they use mutually incompatible lens mounts?
Pentax: Release a similar camera to the Spotmatic but with a new feature.
1971
Nikon: We need to do something to outperform the Canon FD lenses, which are testing better than our offerings in magazines. Also, how could they manage to put an aspheric lens on the Canon FD 55/1.2AL without it costing like a luxury yatch?
Leitz: How could they manage to put an aspheric lens on the Canon FD 55/1.2AL without it costing like a full Leica outfit?
Pentax: Release a similar camera to the Spotmatic but with a new feature. Also, now that we have our superdupermulticoating process, let's tell everybody that they NEED multicoating in all their lenses, otherwise their lenses are crap.
Minolta: We can make a better camera than the F-1 or F, so let's do it.
Pentax: Release a similar camera to the Spotmatic but with a new feature.
About 1973:
Nikon: Har har, pros still love us! We're the BEST! We don't need to innovate!!
Canon: We really need to dethrone Nikon. Let's pull out ALL stops, research like crazy and see what we can do.
Minolta: We need to do some marketing move to get noticed above Nikon/Canon. Call Leitz.
Yashica: We need to do some marketing move to get noticed above Nikon/Canon. Call Zeiss.
Leitz: We need to ally with a japanese manufacturer if we want to survive. Minolta.
Zeiss-Ikon-Voigtlander: We need to ally with a japanese manufacturer if we want to survive. Yashica.
Rollei: We need to put a factory in Singapur if we want to survive.
Pentax: Release a similar camera to the Spotmatic but with a new feature.
1974:
Nikon: Canon has caught us by suprise with the FD 35-70/2.8-3.5 zoom (first truly pro-caliber standard zoom lens and an optical milestone). We need to copy this design or invent something to match or surpass the performance of this lens.
Pentax: Release a similar camera to the Spotmatic but with a new feature.
Canon: Computers are the feature. We should research in that area and see what computers can do for our cameras.
1976:
Everyone except Canon: (after looking at the AE-1) How could they pull this off?!
1978
Everyone except Canon: (after looking at the A-1) They did it again. How could they pull this off?!
1979:
Nikon: Ok, we need to put automation and create a camera for the ladies. Also, look at Olympus; we need to shrink down our cameras and lenses.
Also, look at how Contax called the Porsche design group for our RTS. Let's call some italian car designer to mess with our new pro SLR design.
Canon: We need to release a successor to the F-1, and THIS time we should dethrone Nikon for good. Also, look at Olympus; we need to shrink down our cameras and lenses.
Pentax: Ok, about time to make a pro camera.
1981
Nikon: Look at them! They are buying our Nikon F3, even despite the manual metering display being the worst we've brought in ages!
Canon: Ok, we have the best pro SLR in the market, the best lenses, we shall dethrone Nikon this time.
Leitz: Why nobody likes our pimped-out Minoltas?
1982:
Pentax - releases AF camera
Nikon: We should go AF. Let's put the AF motor in the lens. And let's make a F3AF prototype so they know we can do it. But AF is just a gimmick, so don't worry.
Canon: We should go AF. Let's put the AF motor in the lens. Meanwhile we release an autofocus FD lens so they know we can do it. Let's research.
Minolta: We should go AF. Let's put the AF motor in the body. Let's create a fully feature AF system.
1984
Canon: Minolta is going for a full AF system! We need to do something radical. Let's design the EF lens system. Electromagnetic diaphragm. Micro-motors. Fully electronic mount.
Nikon: Minolta is going for a full AF system! But they will not release a pro AF camera, let's create a pro AF camera and some AF lenses. By the way, change of plan: better put the AF motor in the body, not the lens; it's easier that way.
Minolta: With this we shall conquer the AF world
1985
Canon: Minolta will eat our lunch!! Release the T80 to distract the manufacturers while we perfect the EF system. Let's pull out ALL stops to win over Nikon and Minolta. The key is simple -- let's aim for the highest performance and tech possible. How about researching into piezoelectric motors?
Nikon: We should work in AF technology to overcome our competition.
Minolta: Oh oh ... the giants have woken up!
Yashica: Let's create some REALLY UGLY AF cameras so we win some design award.
Leica: We should release a mechanical SLR to revindicate the virtues of mechanical cameras.
1987
(Canon EOS 650 and Canon AF system released)
Nikon: We're doomed! The system is faster than ours! But they have abandoned the FD mount. They have no loyalty, they shall fall. We predict that Canon FD-system users will set Canon dealerships on fire with molotov cocktails. Also, we're getting our F4 ready, the first PRO autofocus camera.
Canon: Prepare for world domination once our pro AF SLR and our ultrasonic 300/2.8L lens is ready.
Minolta: We're doomed again... Ok, try to put gimmicks on our AF SLRs so they sell more.
1989
Nikon: Look at the Canon EF 300/2.8L, with ultra fast focusing and perfect optical performance! Look at the Canon EF 50/1.0L! How is this possible?! Call our marketing department to see how can we mantain our customer loyalty.
late 1990s:
Canon: Look at those sports events full of our white lenses. We are the kings.
Nikon: Do whatever is needed to update our AF system. Year after year we are lagging behind Canon.
Minolta: Umm... Konica, do you want to purchase us?
Leica: Well, at least we can still sell things to rich people...
--- condensed version ----
Leitz: Ha! We're the BEST in the world! Nobody can surpass German technology!
Nikon: Let's surpass german technology, let's bet in the SLR.
Canon: Let's surpass Nikon, everything they do, we can do better.
German makers: We're going down.
Canon: Everything Nikon does, we do better, but pros have already bought a lot of Nikon gear.
German makers: We're bankrupt.
Minolta: Let's release a full AF system so we can be kings.
Nikon: Let's release a pro AF system so we don't lose market share. But AF is for kids.
Canon: AF is the future, let's invest in huge R&D to create the ultimate AF system for the years to come.
Hasselblad: Let's grab a Sony Nex camera, wrap it in wood and jewerly, and see if they buy it only because it says "hasselblad". That way, somebody could finally buy us something.
...