Fred Miranda wrote:
You are stretching a little bit here.
The 50/1.4 ZA is no mini 85GM in terms of size and weight. They are pretty much the same here.
I spent all of yest with the 50/1.4 on a peak design wrist strap and today bc we did a 3 mile walk, I had it on the black rapid metro. Barely noticed it either day.
Tonight when we walked 15 min to dinner and back, I had the 85GM on the wrist strap and knew it was there every step. Usually use the sling with it, but wanted to compare.
ecarlino wrote:
I spent all of yest with the 50/1.4 on a peak design wrist strap and today bc we did a 3 mile walk, I had it on the black rapid metro. Barely noticed it either day.
Tonight when we walked 15 min to dinner and back, I had the 85GM on the wrist strap and knew it was there every step. Usually use the sling with it, but wanted to compare.
It could be the 85/1.4 GM's bigger front element makes it more front heavy than the 50/1.4 ZA. So, perhaps the 50/1.4 balances better on the A7RII. What do you think?
I don't have the new Sony 50/1.4, but the EFCS tests have got me curious to compare other 1.4 lenses with/without EFCS at high shutter speeds. It's supposed to be bright and sunny here tomorrow; I could play around with some tests and post here if you guys want to see them. I can do Otus 55 and also Otus 85 (plus ZE-mount 35/1.4); that's all I have at 1.4. Can also do a comparison with a Sony 55/1.8. I also have a ZE-mount 50/2 makro-planar, but I gather that its bokeh won't differ since it's f/2 wide open.
DannyBurkPhoto wrote:
I don't have the new Sony 50/1.4, but the EFCS tests have got me curious to compare other 1.4 lenses with/without EFCS at high shutter speeds. It's supposed to be bright and sunny here tomorrow; I could play around with some tests and post here if you guys want to see them. I can do Otus 55 and also Otus 85 (plus ZE-mount 35/1.4); that's all I have at 1.4. Can also do a comparison with a Sony 55/1.8. I also have a ZE-mount 50/2 makro-planar, but I gather that its bokeh won't differ since it's f/2 wide open.
I did a comparison including slower shutter speeds outdoors using a variable ND filter. I tested from 1/80s all the way up to 1/8000s. With EFCS set to 'On' and the lens at f/1.4, you only start seeing differences in rendering above 1/1000s. It starts to get even more noticeable at 1/2000s and above 1/5000s it's very noticeable.
Fred Miranda wrote:
I did a comparison including slower shutter speeds outdoors using a variable ND filter. I tested from 1/80s all the way up to 1/8000s. With EFCS set to 'On' and the lens at f/1.4, you only start seeing differences in rendering above 1/1000s. It starts to get even more noticeable at 1/2000s and above 1/5000s it's very noticeable.
Yes, I meant that I'd shoot at 1/1000 and faster since it will be bright, allowing high shutter speeds without cranking up ISO.
Fred Miranda wrote:
I did a comparison including slower shutter speeds outdoors using a variable ND filter. I tested from 1/80s all the way up to 1/8000s. With EFCS set to 'On' and the lens at f/1.4, you only start seeing differences in rendering above 1/1000s. It starts to get even more noticeable at 1/2000s and above 1/5000s it's very noticeable.
Are you still also seeing a benefit from turning off EFCS at 1.7, or is it only at 1.4?
Also, I can see how very fast shutter speeds might overtake the data read rate off the sensor, but I'm confused as to why wide apertures are more problematic.
Parariss wrote:
Are you still also seeing a benefit from turning off EFCS at 1.7, or is it only at 1.4?
Also, I can see how very fast shutter speeds might overtake the data read rate off the sensor, but I'm confused as to why wide apertures are more problematic.
Educational thread, thank you!
At f/1.7 the difference is barely noticeable but it's still there. Same as what I see with the 55/1.8 wide-open.
DannyBurkPhoto wrote:
Yes, I meant that I'd shoot at 1/1000 and faster since it will be bright, allowing high shutter speeds without cranking up ISO.
Just to be clear. My test was done outside under high contrast lighting. I used a 10-stop variable ND filter and kept ISO at around 100. I captured images from 1/80s and 1/8000s shutter speeds by rotating the variable filter and taking a picture at every stop increment. I was just curious to see what's the breakpoint shutter speed where the electronic first curtain starts become problematic.
There is no visible different until 1/1000s and that's looking at 1:1. After that and specially after 1/2000s the electronic shutter curtain starts to be a problem. For those shooting above 1/3200s and f/1.4, definitely turn EFCS 'off'. (And that goes for any lens on the A7RII)
This shot didn't quite come out the way I'd hoped -- hard to get my toddler to cooperate; the lighting was a little overcast; and there's a touch of camera shake -- but thought I'd post this one anyway as an example of the bokeh and rendering. This one is at f/1.4 and has been processed.
The rendering is everything I had hoped it would be, it's got the contrast and pop wide open that I was missing from the 55. Sure, the bokeh might be a tad busier than the 55, but you can still melt the background pretty good.
50 has never been my favorite focal length, but I feel like this lens might change that!
Fred Miranda wrote:
Here is the difference between f/1.4 and f/1.7 with EFCS set to "OFF". (Rendering at f/1.4 is now smoother with this setting change)
A7R shutters won't have to worry about this and of course this should not be an issue at all with the A7RII at slower shutter speeds.
This is a superb thread Fred, thank you!
EDIT: It has me wondering about the 85GM & EFCS, I'll have to test it too.
I just shot Big Bronco. Holy smokes and I tested against the GM 85 just what I expected both at 1.4 the 50 has more bite to it. The 50mm is good in the corners even at 1.4. Very flat field
Ill get this up sometime today I hope
Strong comment this maybe the sharpest lens I have and i have really really great lenses.
The 50mm is good in the corners even at 1.4. Very flat field
Looking forwrd to them, Guy. I did a small f1.4-f5.6 test myself. Handheld at 12-15ft, just to see. here they are...
And not trying to one-up you either!!
it is sharp to the corners wide open...
Gregg
Its unbelievable wide open in the corners and not a drop of CA. Working on it, this takes a lot of time. I tested 4 lenses Loxia 50, GM 85 at proper distance away, GM 24-70 at 50mm and the Sony 50mm
Nice Lucinda! Greg try shooting some 1.7 stuff as well. You will be impressed
Will do! I'll try it today. Going out today to do some family stuff. I'll take it with.
