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Benefits of A-mount

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SnowFella View Drop Down
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Post Options Post Options   Quote SnowFella Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 11:35
Originally posted by Jozioau Jozioau wrote:

On DSLT cameras, to me the single greatest benefit of the EVF is the WYSIWYG (what you see is what you get) real time preview of each and every adjustment you make before pressing the shutter release - exposure compensation, white balance, ISO, the viewfinder shows you EXACTLY what each tweak is doing to the image you're about to take. Similarly, the focus peaking in manual focus shows you exactly what spot or parts of your subject is/are in focus.
All the perceived disadvantages of EVF are things one gets used to, and these undeniable advantages have made a huge difference for the positive.
Like @Bob J says, you can basically stop chimping.


Guess in a way e-mount depending on the lens used has an advantage there since some depending on focusing mode stop the lens down and will show you DOF in the viewfinder unlike what A-mount ever will.
Plus not familiar with E-mount as I do not use them but A-mount cheats us for exposure compensation and WYSIWYG, ever since the A77 it's claimed +-5EV but the A77/A99 generation only ever showed +-2 EV in the EVF, A99ii will do +-3 but anything outside of those settings will never show until the shot is taken.

Done lots of bright overcast BIF situations with my A77 when dialing in massive EV compensations could be needed, once I go past +2 the EVF stops showing a true WYSIWYG result.
 



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Post Options Post Options   Quote Jozioau Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 12:55
Originally posted by SnowFella SnowFella wrote:


Guess in a way e-mount depending on the lens used has an advantage there since some depending on focusing mode stop the lens down and will show you DOF in the viewfinder unlike what A-mount ever will.


Don't know whether I might be missing something, but a-mount cameras do have their depth of field preview button at the right hand corner base of the lens mount, as had been the case with all Minolta SLRs and DSLRs as well. I often use it to check DOF before hitting the shutter release.
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Post Options Post Options   Quote Photosopher Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 14:09
Not only depth of field preview, but also the more accurate option of shot result preview which displays all corrections. EMount has that ability as well.

Live DOF can seem like an advantage. Wish it were an option on EMount, rather than a mandate. A few shoots ago I needed smaller aperture in a very dark environment. The a7RIII EVF gets really really grainy, whereas a99II EVF does not because it can view at open aperture, while still accommodating DOF preview if desired.

This became apparent on a product shot a few months ago where I thought the GM24-70 was right lens for job. Needed to shoot at f16 manual focus. Impossible to see distinctions and the accelerated fly-wire focus made it worse. Solution, use the ZA24-70 with LAEA3 adapter, focus wide open without fly-wire acceleration.

The GM is better on test charts. The ZA is better on jobs.
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 14:34
I would like to be able to use depth-of-field/shot result preview along with focus magnification. On E-mount you do sort of get this with those native lenses that are stopped down before taking the picture.

I've read a lot of complaints about the E mount aperture/focusing behavior, so perhaps Sony will eventually add an option for the user to select their desired behavior.

Edited by QuietOC - 16 April 2018 at 15:06
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F3 LA-EA1 6.5 16 20 30 50 60 16-50 18-55 55-210
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Post Options Post Options   Quote Eclipse Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 14:41
I find an EVF is bad enough as it is when it comes to seeing what I'm doing*, if it incorporated live DOF and I couldn't switch that off, it would drive me mad. I didn't realise that E-mount made it mandatory. What's the technical reason for that (I assume there is one)? It seems deeply counter-intuitive not to offer the option of not having it.

* I will grant, now I have had the 99ii for a few days, that its EVF is easily the best I have seen. I still don't actually like it, though, and would still prefer an OVF, but I suppose in time when I have used it more for jobs rather than just tentatively tested it to explore the settings, I may change my mind. Its first big test will be when I take it horseracing- this weekend, weather permitting.
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Post Options Post Options   Quote djfoxy Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 16:02
Originally posted by Photosopher Photosopher wrote:

Solution, use the ZA24-70 with LAEA3 adapter, focus wide open without fly-wire acceleration.

The GM is better on test charts. The ZA is better on jobs.


I would like to see / read / watch more experience feedback about fly by wire MF. For sure the pros and cons will be more related to use cases.

I do a lot of church photography in very dark situation still with tripod, but for me the MF is critical and tricky in this kind of situations.
On A58 I often ending with grain in the live view adding to the difficulty to MF, things getting better with A77ii live view.
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Post Options Post Options   Quote Photosopher Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 16:16
Originally posted by Eclipse Eclipse wrote:

...I didn't realise that E-mount made it mandatory. What's the technical reason for that (I assume there is one)?


I've tried to determine that many times. My thoughts are that it may have something to do with focus shift, but I'm not convinced that's true in all cases because the behaviors are so different from lens to lens.

First, live DOF hasn't always been the case. With GM24-70 and a7RII original FW, it focused wide open aperture. Then somewhere along the way with the third or fourth FW update, the behavior changed to always stopped down. I noticed this by happenstance with studio strobes, shooting f16 with only the modeling lights for viewing. The GM immediately started having focus hunting problems. No mention of the new aperture protocols in the FW update. Sony just did it.

(They did the same thing with the 18-105G distortion and lens corrections. Now they're always on with no option to turn off. This is true even shooting RAW). The lens had bad rep for terrible distortion. I liked it for some creative things. Now the distortion is unavailable.

Then I notice that some lenses open their apertures while focusing, and some don't, instead just gaining up the EVF for a quick flash then back to normal. So I don't think focus shift is the entire reason. But it may be the reason for some lenses, and Sony just decided to make it mandatory across the board for all lenses, simply to ease the protocols.

I really don't know. But it should be an option.
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Post Options Post Options   Quote Photosopher Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 16:23
Originally posted by djfoxy djfoxy wrote:


I would like to see / read / watch more experience feedback about fly by wire MF. For sure the pros and cons will be more related to use cases.

I do a lot of church photography in very dark situation still with tripod, but for me the MF is critical and tricky in this kind of situations.
On A58 I often ending with grain in the live view adding to the difficulty to MF, things getting better with A77ii live view.


Consider a99II. The magnified protocols and performance are outstanding. But you may also be well served by EMount with adapted lenses. They have linear focus and open aperture viewing. Plus you can build a shift lens collection much easier.

I don't see much difference in a99II EVF and the a7RIII higher resolution EVF. The LCD's are the same. But every a7 I've owned was compromised on the viewfinder optics. I just returned the a7III in favor of a7RIII. Not because of the higher resolution EVF. But it seemed to me that the a7III viewfinder (although better than previous a7's) just didn't have the off center sharpness that the AMount and a7R series provided. All my focusing is off center so this is important to me. The a7III also has a slightly lesser resolution LCD than the others.

Edited by Photosopher - 16 April 2018 at 16:28
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Post Options Post Options   Quote overeema Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 16:24
Originally posted by Eclipse Eclipse wrote:

I find an EVF is bad enough as it is when it comes to seeing what I'm doing*, if it incorporated live DOF and I couldn't switch that off, it would drive me mad. I didn't realise that E-mount made it mandatory. What's the technical reason for that (I assume there is one)? It seems deeply counter-intuitive not to offer the option of not having it.

* I will grant, now I have had the 99ii for a few days, that its EVF is easily the best I have seen. I still don't actually like it, though, and would still prefer an OVF, but I suppose in time when I have used it more for jobs rather than just tentatively tested it to explore the settings, I may change my mind. Its first big test will be when I take it horseracing- this weekend, weather permitting.

The discussion about OVF vs. EVF is not a new one. Ever since Sony stopped producing camera's with OVF some folks argue that either one is better for their demands.

For E-mount it is a non issue. E-mount has EVF or no viewfinder at all. Period.
For A-mount both options are possible although Sony since introduction of SLT's completely embarked on EVF.
First it must be said there are viewfinders and viewfinders. OVF's can vary in brightness and magnifcation factor, EVF's can vary in resolution and responsiveness.

Since I use both types of camera I have learned to value the benefits of either. When I walk around and want to react on a sudden opportunity to take a picture, you are already too late with EVF. The camera has to wake up before you see anything in the EVF at all. And then if you have a PZ-lens, it has to wake up before it responds to your zooming and focussing demand. An OVF shows instantaneously what you could frame in your picture and the camera focuses itself in a split second. With EVF you are constanly draining your battery, whereas with OVF you can confidently use your camera for the whole day.

On the other hand, in dim ambient light the EVF gives you a much brighter view of your picture, and shows the effect of your camera settings on the fly, but blacks out for too long after a picture (except when you can afford an A9)
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Post Options Post Options   Quote Eclipse Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 16:56
Best OVF for my money- it's between the D9 and the A900.
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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 17:20
Originally posted by QuietOC QuietOC wrote:

I would like to be able to use depth-of-field/shot result preview along with focus magnification.

There's a way to get DOF preview + focus magnifier with A-mount although you have to give up some other capabilities to get it. You probably know what that is.
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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 17:29
Originally posted by djfoxy djfoxy wrote:

I would like to see / read / watch more experience feedback about fly by wire MF. For sure the pros and cons will be more related to use cases.

My experience with it has not been pleasant. There's always a disturbing separation between the tactile input and the result.
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Post Options Post Options   Quote Photosopher Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2018 at 17:35
Worse still that the lenses have different natures. Some accelerate super fast, some fast, some medium and slow. Some like the 85GM and 70-200GM don't accelerate at all. The inconsistency is bewildering.

Fuji received some good DPR praise for addressing flywire acceleration and giving options to users. My Samung NX1 has options for fast, medium, slow. The medium setting seems quite linear.
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Post Options Post Options   Quote Eclipse Quote  Post ReplyReply Direct Link To This Post Posted: 24 April 2018 at 14:18
The more I use the EVF on the 99ii, the more disappointed I am with it on just about every aspect.

For motion shooting, it's jumpy and slow, even at 8fps and the fastest refresh rate, and I find it flickers- I notice this most in the first few seconds I put my eye to it each time, but it's still annoying even when the eye gets more used to it. This makes it very tiring on the eye, as well as distracting.I have also had to learn to anticipate movement, as it is so slow. Using it initially like an OVF, I was getting horses chopped in half, or without heads or back legs. I never normally get that.

For my uses, OVF is far superior. And as far as wysiwyg goes, the EVF isn't. Which is fortunate, as wys is pretty nasty; blotchy and high in contrast. I will see if I can do something about adjusting the contrast, and will try to adjust the colour to more like it should be compared to the actual images, but I guess that's 'it' with the other aspects like flicker and slow response.

In some ways e-mount is to blame for this, as the EVF is an import from e-mount. I'd have preferred sony to regard A-mount as traditional and kept the benefits of that. But maybe that's the price you pay for having a higher fps rate. It's a tough price to pay for some of us, though. And there is now no new alternative a-mount with OVF, so we are stuck with it.
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