I'm not sure what causes it tbh, but some do seem to show it less than others
Caused by optical vignetting which is why just like vignette the cats eye gets when better stopped. I think it just means the GM lens has more vignetting than the samyang which isn't surprising for a f1.2 lens.I'm not sure what causes it tbh, but some do seem to show it less than others
I'm not sure what causes it tbh, but some do seem to show it less than others
To my eyes the Sony f1.4 GM is the worst of the lot. I think for someone like me who doesn't rely on having to get every shot in focus I may be better off sticking with the Samyang as it's the final image that matters to me. It's definitely the best in terms of more spherical bokeh compared to both GM's, the ZA and the Sigma DG DN.
Interesting that, thanksOptical vignetting...
Understanding Bokeh
In this educational article from B&H, you will learn the definition and history of bokeh, as well tips on how to use it creatively in your photography.www.bhphotovideo.com
Some lenses do it more than others. I think I read somewhere that it depends on how recessed the aperture is and some lenses may of course have a more recessed aperture than others which could explain why some lenses do it more than others at the same focal length and aperture but why the aperture should be more or less recessed I don't know. We need a lens designer or someone good at googling to tell us.
Absolutely, I've said it before if I was making money from it I'd only buy Sony lensesFor sure.
If you ned reliable a.f and f/1.2 the Samyang ain't much good though.
if you don't need f1.4 there's more options. The cat's eye is more easily controlled in smaller aperture lenses.
Needs to be f1.4 or f1.2
That article you listed mentions that it's in the design of the lens, I'm not sure manufacturers are going to give away exactly how they designed them. It also explains how aspherical lenses reduce this effect, but increase the onion ring appearance although some manage to minimise this with certain polishing techniques. It also talks about those that have deliberately designed the lens to give the swirl bokeh effect, not sure why anyone would desire thatI've been trying to find more on the cats eye effect but not having much success.
I'm sure I read somewhere that it's due to the position of the aperture, more or less recessed, but I can't find that today. I know it's caused by the shape of the aperture when seen at an angle but I can't find an explanation as to why some lenses display this more than others at the same focal length and aperture, assuming that's true.
I assume that it is possible to decrease this effect by design as it's clearly possible to increase it as with the Petzval lenses which AFAIK make this a feature. Perhaps as some Sony lenses seem to be designed to be smaller the issue is more likely? I suppose if the lens is bigger that could help? Perhaps a larger lens perhaps with a larger image circle and with an aperture which looks more rounded even when viewed at an angle would show this less?
If anyone has a source for this pls post
Needs to be f1.4 or f1.2
That article you listed mentions that it's in the design of the lens, I'm not sure manufacturers are going to give away exactly how they designed them. It also explains how aspherical lenses reduce this effect, but increase the onion ring appearance although some manage to minimise this with certain polishing techniques. It also talks about those that have deliberately designed the lens to give the swirl bokeh effect, not sure why anyone would desire that
I might make an effort to take some eye height / normal human PoV pictures. Just for fun
I tend to try and do this but I'm always having to bend/squat down to do so due to being tall. I guess I could use the LCD screen and hold the camera lower down but it doesn't feel natural.The Vivian Maier thread got me thinking about perspective. Watching a documentary about her and also a vid made by Manny Ortiz has made me think about perspective more when taking people pictures although I suppose this first struck me in my film days when I was using a 35mm lens and realised that I could make my GF's legs look longer if I took the picture from a certain height and angle
I suppose we all think about camera height and angle and position for perspective effect rather than just to get the subject in some if not all of the time but I think there's also an argument for normal eye level PoV as that's how we largely see the world.
When I next get time to go out with a camera
Kneeling is I suppose more stable than bending and AF does help here as it's quicker than MF. I do sometimes use the rear screen but again it's often easier with AF as judging fine focus on the screen can be a problem.
These are amazing!!
www.talkphotography.co.uk
Thanks Mike. It was a bit of an experiment and I shot about 900 frames in all with probably about 50 keepers. I could have done with exposing a bit more for the highlights but as I've not shot anything moving before with the RX100, I was quite pleased to have got some nice shots.
Guys, don't miss the vid in this thread...
The No-nonsense truth about Holga Cameras
I have never used one but I know he is absolutely right on the nail with this assessment: View: https://www.youtube.com/watch?v=gS4SUSwTzTk
Who's getting one?
A whole range for free
I need to be banned from the internet, been looking at all this bokeh ball thing and am convincing myself I need the 50mm f1.2, it does have the cats eye bokeh at f1.2 but by f1.4 it's reduced quite a bit so I could shoot at f1.2 unless I find the bokeh distracting and then can stop down to f1.4 or f1.6. Shame it's so heavy, not to mention expensive
View attachment 388967
Never heard that expression noHave you ever heard the expression "s***e or get of the pot?"
You have been eyeing up the 50GM since launch, just buy it.
What's the worst that could happen, you don't like it and end up selling it on?
Sure your minted anyway, probably spend more doh on going out for a bite to eat than the 50GM costs.
