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Temper temper.
To quote David Banner: "you wouldn't like me when I'm angry" - dim wits, thankfully, do not make me so, lucky for you
Temper temper.
I don't often go green but 1 insult and 1 threat in a short space space of time, = green snake ..To quote David Banner: "you wouldn't like me when I'm angry" - dim wits, thankfully, do not make me so, lucky for you
I had the em5 for a bit, great little camera [bar the ergos, for me personally] - I bought it as a tester for M43, always planning to upgrade it if I decided I liked the system - I was still shooting Fuji at the time. It's not just about seeking tech beyond our needs, it is just nice to get even minor upgrades. I almost bought a mkII, because it had a MUCH better evf and better IBIS. Those things alone are worth it IMO
Ah good old equivalence rabbit hole
F2.8 is f2.8 as far as exposure is concerned but for DoF field it's equivalent to f5.6 on FF.
But that's not the end of it... A FF sensor is capable of gathering 4x more light than m43 sensor. This gives it better performance especially in low light. So basically a FF sensor is about 2 stops better performance than a m43 sensor.
So what that means is one could get the same performance i.e. image quality out of a FF sensor by sticking a f5.6 lens on it as they would out of a m43 sensor by sticking f2.8 lens on it, all else being equal.
To compare like of like i.e. similar/same performance you'll need compare m43+12-40/2.8 with FF+24-80/5.6. Using a faster lens on FF would give it an advantage over m43 (possibly at cost of physical size)
Such a lens doesn't exist on FF as far as I know but I am not talking any specifics here, just plain old equivalence discussion
This started off because of the comparison photo between the Sony GM f/2.8 lens to show how massive the size difference is but my point was the more sensible comparison is surely with the Sony 24-70mm f/4 because that's closest in performance to the m43 lens and then the size difference basically goes away?
2.8 is 2.8. I understand the DOF and better noise capabilities, but the sony 2.8 wont allow more light on the ff sensor than 12-40 will on M43. Therefore I think the lenses are equivalent
Think it would be best if this thread was locked in all honesty oh hissy one . It’s going to go nowhere .
I'm not really in favour of locking threads I don't like stifling debate, unless it get really nasty, that is.Agreed.
But all that is a product of the sensor, not the lens. I wasn't comparing to a 12-40 on full frame but rather the 24-70 f2, which should be the same regarding light reaching the sensor. What the sensor can do with it is a different matter.F2.8 is f2.8, no one questions that. It's the physical characteristic of the lens just like focal length. But we don't compare 12-40mm on m43 to 12-40mm on FF do we. Because the end result is not equivalent. We like to make like for like in terms of end result and capability.
Similarly f2.8 on a m43 sensor is only as capable as f5.6 on a FF sensor in what it can produce. It'll never be equal to the capabilities and performance of f2.8 on FF sensor which would give it 2 stops advantage. So that doesnt make it a like for like comparison.
I am really not nik picking but trying to understand, are you saying that in order to get the same exposure from a f8 on MFT as exposure on a FF, the ff lens would be set to F4?F2.8 is f2.8, no one questions that. It's the physical characteristic of the lens just like focal length. But we don't compare 12-40mm on m43 to 12-40mm on FF do we. Because the end result is not equivalent. We like to make like for like in terms of end result and capability.
Similarly f2.8 on a m43 sensor is only as capable as f5.6 on a FF sensor in what it can produce. It'll never be equal to the capabilities and performance of f2.8 on FF sensor which would give it 2 stops advantage. So that doesnt make it a like for like comparison.
But all that is a product of the sensor, not the lens. I wasn't comparing to a 12-40 on full frame but rather the 24-70 f2, which should be the same regarding light reaching the sensor. What the sensor can do with it is a different matter.
No worries happy to discuss this as long as it remains civilI am really not nik picking but trying to understand, are you saying that in order to get the same exposure from a f8 on MFT as exposure on a FF, the ff lens would be set to F4?
Ok, to me we can talk about equivalence when we are comparing DOF and Angle of View, but equivalence when we get to IQ, Dynamic range etc cannot be compared as optical quality and sensor performance introduce variables that make an equivalence false.No worries happy to discuss this as long as it remains civil
No that's not what I am saying.
What I am saying is if you shoot a scene at ISO100, f2.8 and 1/S shutter speed on m43.
To get the exact same result on FF (i.e. inc dynamic range, tonal range, noise etc) you would shoot at ISO400, f5.6 and 1/S shutter speed.
Now if your FF is lens is capable of shooting faster than F5.6 that's an advantage in its favour but the m43 lens in question cant shoot any faster.
Basically a small f2.8 zoom on m43 is capable of producing results that will be on par with a f5.6 zoom on FF. So comparing f2.8 zoom on m43 to f2.8 zoom on FF is not like for like (in this case for size) since the FF setup is capable of better results.
Have I not been civil?No worries happy to discuss this as long as it remains civil
The difference in focal length and depth of field is easy to understand but what I'm not clear on is the rest, between the f/2.8 m43 and ff lenses, wide open the photo would (roughly) have the same exposure level between them yes? The difference would be that the ff sensor is capturing a lot more light so has an advantage when it comes to noise (so in practical terms almost like 2 stops difference on the ISO setting)? Yes, no, maybe?
Probably the most sensible post for a couple of pages IanI think Olympus and Panasonic listen to customer and their "pros" feedback. They probably invest quite heavily in R&D and try to work out where the market is going and what consumers want.
Anything a company produces is because they see a demand for it. Not everyone wants one of the f1.2 pro primes but then I doubt Olympus thought all customers will buy one.
The reason the G9 and E-M1.2 are bigger is because what people said they wanted.
What annoys me is when one person doesn't like something a camera company does the world is ending. Just go find an alternative that suits you better or stick with what you have if it isn't broken or does limit you in anyway.
I don't often go green but 1 insult and 1 threat in a short space space of time, = green snake ..
Have a day off and think about what you did.
I'm not really in favour of locking threads I don't like stifling debate, unless it get really nasty, that is.
Lets see what happens when Keith returns, and I hope I don't have to send anyone else on holiday either...
F2.8 is f2.8, no one questions that. It's the physical characteristic of the lens just like focal length. But we don't compare 12-40mm on m43 to 12-40mm on FF do we. Because the end result is not equivalent. We like to make like for like in terms of end result and capability.
Similarly f2.8 on a m43 sensor is only as capable as f5.6 on a FF sensor in what it can produce. It'll never be equal to the capabilities and performance of f2.8 on FF sensor which would give it 2 stops advantage. So that doesnt make it a like for like comparison.
I own a m43 cameraThis just went up today, Sony A9 Vs G85/80 - it's video, but that shouldn't matter, he shows direct comparison between a 50mm @ 2.8 on the A9 Vs 25mm @ 1.4 on the G80 - The Panasonic is twice as bright, and also has a slightly blurrier backdrop ... Honestly, I think people push the whole equivalence thing way too much, and often it's people who've never even touched an M43 camera that hype it the most. Not picking at you, just happened to use your post as you're the last to have made the comparison between apertures
I own a m43 camera
This just went up today, Sony A9 Vs G85/80 - it's video, but that shouldn't matter, he shows direct comparison between a 50mm @ 2.8 on the A9 Vs 25mm @ 1.4 on the G80 - The Panasonic is twice as bright, and also has a slightly blurrier backdrop ... Honestly, I think people push the whole equivalence thing way too much, and often it's people who've never even touched an M43 camera that hype it the most. Not picking at you, just happened to use your post as you're the last to have made the comparison between apertures
Which one? Surely you can do the comparison yourself in that case and see? For one, you should notice immediately that when it comes to exposure, never mind DOF, 2.8 is 2.8 no matter ... a very quick test will show you this.
F2.8 is f2.8, no one questions that. It's the physical characteristic of the lens just like focal length. But we don't compare 12-40mm on m43 to 12-40mm on FF do we. Because the end result is not equivalent. We like to make like for like in terms of end result and capability.
Similarly f2.8 on a m43 sensor is only as capable as f5.6 on a FF sensor in what it can produce. It'll never be equal to the capabilities and performance of f2.8 on FF sensor which would give it 2 stops advantage. So that doesnt make it a like for like comparison.
LX100
I never said otherwise. see below...
I have explained everything above as clearly as possible. If you still don't get my point there probably isn't much else I can say to make you understand.
You're going to get slight differences in blur and lighting and other things that are down to the lenses. Another way to do it is to compare cameras using the same lens as this will help to eliminate differences in lenses leading to conclusions about the cameras or formats.
I must admit I do feel I am up a bit of a dead end alley at the minute with m43
I have a GX80 with 12-35, 35-100 f2.8s, 100-300 and a couple of primes. Been with m43 since a GF1 and I love the size/portability. Happy with the quality in full light but not the low light performance/noise.
Have looked at the FF options, lenses too big/heavy and expensive. Looked at the APS-C options, poor lens lineup after being spoilt by the m43 line, lack of IBIS on the small Fuji’s after using it for so long.
I have resigned myself to tread water and see what comes up from Olympus/Panasonic and Sony promising more APS-C lenses.
I think m43 will always have a place, well it will in my camera bag.
<snip>
But, this isn't an equivilancy thread, I don't know why it ever even came up, it seems to do so every time m43 gets a mention as if it has to be shot down and put in it's corner right away.
Of course equivalence comes up whenever M4/3 is mentioned - it's fundamental, unavoidable and explains everything.
M4/3 sensor has one quarter the image area of full-frame, a factor of 4x or two stops. Everything swings on that, from the smaller/lighter cameras and lenses, to the equivalent focal length crop factor, the depth-of-field difference, reduced dynamic range, reduced high ISO performance, and reduced sharpness.
All those things are mostly physics that cannot be changed and while technology continues to improve the end result, that same technology also applies to larger sensor formats so the difference remains constant.
Where M4/3 scores is in size and weight reduction. Everything else is a downside where image quality is concerned. IMHO the problem for M4/3 is in the relentless march of the smartphone further and further upmarket. They are eroding 'proper' camera sales in a way that nobody dreamed of just a few years ago and the pace of development is scarily rapid. M4/3, being the smallest of the enthusiast interchangeable-lens camera formats, will get hit first and hardest.
That doesn't mean the advantages of M4/3 will disappear, and they make a great choice for some specialist areas like a light-weight outfit for wildlife, but sooner or later it will erode the more popular end where manufacturers make most of their money.
Why doesn't it matter so dramatically whenever APSC is mentioned? I mean why don't FF hoardes near break their necks tripping over one another to get "equivalence" pokes in when Canon 1.6x is mentioned? There's not the huge gap in IQ that many imagine, I know, I've used all 3 formats. You really have to pixel peep. Low light and DOF, they are the only differences anyone notices - ok, DR in some cases, but M43 DR is better than many would give it credit for. I've posted examples on here in the past, images that were near completely blown out recovered very nicely.
But, everything else you said there is precisely what the thread was about, the fact that many think M43's days could be numbered, if not this or next year, but in the coming years. Unless the main players do some major spicing up soon.
As for phones, I think even if and when camera phones actually catch up, which is still a long way off, they're not even remotely close right now no matter the hype - I'd still opt for even the most ancient dslr styled camera over them, if just for ergonomics alone
Equivalence does get mentioned in relation APS-C, but the difference to full frame is only a bit over one stop, not two stops as with M4/3, but what you say about the kind of image quality from M4/3 is absolutely true. It's more than 'good enough' for very high quality images, but unfortunately photographers have always been obsessed with ultimate image quality, sharpness/detail in particular, and sheer gadget appeal - GAS basically.
Good enough isn't good enough, and better is best. So when the best comes all wrapped up in the coolest new gadget package, ie full-frame mirrorless, it's going to get our full attention. By the same token, M4/3 is at the opposite end of the perceived quality scale, and hasn't had an injection of appealing new tech for years. So it's going to get passed over. None of this has got anything to do with really good photography, but it's what drives equipment sales
Yo,welcome back.popcorn running shortFYI, it was actually meant to be humorous, I never quote anyone! maybe some smilies and not the dim wit part eh? enjoyed my evening of actual chores all the same thanks
As for the thread, I think it served as more good than bad, but I don't care if it's locked.
Yo,welcome back.popcorn running short
Could the DOF have been shallower? yes ... did I want it to be? No ... hence why it was stopped down to 2.8, The image is also cropped in quite a bit. I wanted to include the tree the leaf actually blew from in the backdrop.
Feel free to show me a similar image from a FF 30mm @ 5.6, let's play the DOF challenge for fun of course - preferably just snap shots from the last few days or purposely shot for this thread. I'm genuinely curious here, not looking for debate, just want to see some DOF differences. The 'bokeh' is 'busy' here, I realise that, could have smoothed it more by opening up, this was shot at the end of a hedge, with another smaller tree further back to the right of it. I stopped down because I wanted to include the presence of the tree.
Ok, nothing amazing here, I am a sucker for Autumn leaves, sue me!! But this was shot with a 15mm f/1.7 lens on M43 -
Golden October by K G, on Flickr
Could the DOF have been shallower? yes ... did I want it to be? No ... hence why it was stopped down to 2.8, The image is also cropped in quite a bit. I wanted to include the tree the leaf actually blew from in the backdrop.
Feel free to show me a similar image from a FF 30mm @ 5.6, let's play the DOF challenge for fun of course - preferably just snap shots from the last few days or purposely shot for this thread. I'm genuinely curious here, not looking for debate, just want to see some DOF differences. The 'bokeh' is 'busy' here, I realise that, could have smoothed it more by opening up, this was shot at the end of a hedge, with another smaller tree further back to the right of it. I stopped down because I wanted to include the presence of the tree.