igor_s: I can not see how the RX10 can replace a vast amount of camera/lens combos. The D5500 and 18-135 combo, I guess, is better in every other respect except dimensions and weight. It may be not that reliable PD-focusing with very fast lenses but (1) it has the AF microadjust and (2) you do not have any fast option on the RX10 (jnly F8 in FF terms).
Yes I was wrong at that but everything else applies. If you need you can have the AF adjusted for every lens at a service center.
igor_s: I do not think that the FF video mode has any advantage in high ISO performance b/c of pixel binning.
May I ask how you get from a full-sized image to the print-sized one? That must have been described elsewhere but I coulld not find the link quickly. Thanks.
I do not think that the FF video mode has any advantage in high ISO performance b/c of pixel binning.
I can not see how the RX10 can replace a vast amount of camera/lens combos. The D5500 and 18-135 combo, I guess, is better in every other respect except dimensions and weight. It may be not that reliable PD-focusing with very fast lenses but (1) it has the AF microadjust and (2) you do not have any fast option on the RX10 (jnly F8 in FF terms).
igor_s: Jiom Kasson showed that the A7RII ISO-invariance holds in the range 640-12K ISO, and it breaks at lower ISOs.Here we see that the images below ISO 800 get progressively noisier which is in agreement with above.
Agree. I think that the invariance should hold also in the range ISO 100 to 500, it just jumps at a different level at ISO 640. In that case the shots at ISO 100, 200 and 400 should have had equal noise level. However, let us remember that the image at ISO 200 was pushed up by 5 stops and at ISO 100 by 6 stops. Perhaps that is simply too much (too low signal to quantify properly, made worse by the lossy compression).
Jiom Kasson showed that the A7RII ISO-invariance holds in the range 640-12K ISO, and it breaks at lower ISOs.Here we see that the images below ISO 800 get progressively noisier which is in agreement with above.
Francis Carver: It would have been useful if the announcement stated whether this lens will be covering APS-C image circle and APS-C form factor sensors, or will it be covering full-frame 135 image circle and FF sensors, i.e. what the heck will it be covering in the first place?
Well, I should have said, be happy)).
My commizerations about the US stores)). Could you order one from BHP or Adorama and return it if you would? I see, that must be too expensive:::. You won't believe but I did not pay anything for the delivery and return (yes, that is rare even here...). So buy a Zeiss, they quote all nesessary parameters. Good luck.
I live in Ukraine, and have tested the lenses (F/1.4 and T/1.5) -one from my local store and another obtained from a Ukrainian Internet shop. Did not buy any yet, b/c did not choose my next camera. I guess if the lenses are easily available here they should be in most countries.
Concerning your question, I just defended the lens (and the company if you wish) from your inadequate in my view attacks. So much fuss for so little sense. BTW, you could ask people on this Forum to tell you the focus throw in degrees, couldn't you? But you did not do that. So I can ask you the same question in the opposite sense.
@Francis: "they should know that themselves". What if they don't? IMO that someone does not need any Canon-mount lenses is not a subject. At most it would be enough to say that once w/o provocative "heys" and "wows". The latter is equally applicable to the focus throw in degrees that was not quoted by Samyang. [You have several ways to find it out, e.g. going to a local store]. Lassoni asked you to calm down, I agree with him. That's it. No more word from me.
Francis, I am responding just because I am trying to stop your verbal flood. Nobody objects that the Rokinon is inferior to the Otus. Go get the Otus. Now you're saying (again many times) that you do not like Canon. Get Nikon or Sony then. May be it's time to stop flooding? DPR is a respectable site.
Francis, do you think that anyone's interested? Good luck with any lens you want.
@Francis"Now then -- since I would NEVER buy a Samyang lens, a Rokinon lens, or in fact any other lens in any Canon lens mount configuration"
You may not buy any lens at all:::. Why are you making so much fuss about that?
@Francis: you're speaking like a typical troll. Nothing personal, mate.
Did you read the announcement any further? "Samyang Optics 100mm T3.1 VDSLR ED UMC MACRO is a macro telephoto manual focus cine lens designed for full frame sensor sizes. "And you can be sure that the cine lens (the photo lens being internally identical) have a fair focus throw.
ozturert: In continuous AF, the Sony is perfectly focusing on nose :) In the first video 75% of shots ended up on his nose :)Well, it's still very impressive to autofocus with a Canon lens with a 3rd party adapter. Really impressive. Now we can use the excellent Canon glass with excellent Sony sensor using AF.
@RishiI think that Sony has not offered the Eye AF with third party lenses intentionally, as Sony and moreover Zeiss glass is overpriced compared to many other brands.
In fact, I (cynically) think that Sony did the leap in order to make their financical condition not that bad, and they will stop going on as soon as they decide that they are OK. That's just business.
Rishi: "What finally enabled the use of on-sensor phase-detect information to drive adapted DSLR lenses?"
I'd like to see what prevented from that before.
The Silver Nemesis: After reading the article:a) Sony is (definitely) good;b) Canon is (definitely) bad;c) Nikon is (somewhat) irrelevant (well, except for that 3D tracking that has the purpose to make Canon look even worse);d) Ad-hoc market analysts are giving a (generous) helping hand.
If there is a way to gain brand equity (quickly), this article should be a case study in Harvard Business Review.
@Lassoni: Agree. But I would add that technically they offer a little as far as we are speaking about bodies. No top high ISO performance, no top burst or AF speed, no IBIS... Good old style for crazy money. You could attach a Leica lens to another camera and have the same IQ and optionally more.
Sure Leica do not want to compete with Canon:).