Originally posted by biz-engineer Why develop new lenses for the new mount?
The R5 will be the camera that in my opinion will launch the true "war" between Canon, Nikon, Sony and even Fuji and Panasonic. With 12 and 20fps at 45mp, 8k at 30p without crop and with dual pixel af (4k at 120p), IBIS that will work combined with the stabilisation from the lenses, eye af with body recognition also for birds and animals, 5GHz wifi, first true mirrorless sensor...it will make some waves. Given the R5 specs and given that a 75mp camera is also on the way, there aren't many EF lenses capable to resolve high mp sensors and we know that from the 50mp 5DsR camera. R5 is close to 5DsR in terms of resolution. The EF lenses (some of them) will show their wecknesses once mounted on such resolution cameras. You won't have this problem with RF lenses.
I really don't know how Ricoh will react based on Nikon, Sony, Panasonic and Fuji response to EOS R5. Will Ricoh launch a D850 equivalent in 2 years that will make a lot of Pentax users happy? They will go even higher and skip the 45mp sensor and go for the 61mp sensor which somehow will not pursue the idea of a field camera anymore? They will risk and join the mirrorless market while is still not fully developed? The Pentax users, the sales reports and the general market will probably give us an answer in the next 2-4 years.
---------- Post added 04-04-20 at 10:53 AM ----------
Originally posted by Serkevan The 28-70/2 (not 24, and that's an important distinction) also weighs more than my K-1
with 28-105
The 28-70mm f2 it'a a completely different beast than 28-105mm lens.
Look at Pentax 15-30mm f2.8 vs. RF 15-35mm f2.8L. The RF lens is smaller, lighter and it has extra 5mm on the long end. Put a K1 with a 15-30mm f2.8 next to an R5 when will come with the RF 15-35mm f2.8 and then you'll have a direct comparison in terms of weight.
Originally posted by Serkevan The RF 70-200/2.8 has an extending design and doesn't look particularly sharper than the EF version.
Just a tad faster to focus, a tad sharper and 400g lighter.
Originally posted by Serkevan Mirrorless lenses are not exempt from the laws of physics and their associated compromises.
Of course not. But when we hear manufacturers saying that the new mount gives them new option in terms of optical performance and thet back up their comments with new lenses that perform better than DSLR equivalents (RF 85mm f1.2L vs. EF 85mm f1.4L, RF 15-35mm f2.8L vs. 16-35mm f2.8L III, etc.), I as a user I'm happy because I can choose to shoot with either the EF lenses that I have or buy/rent and shoot with the new ones.
Last edited by Dan Rentea; 04-04-2020 at 03:59 AM.