At the bare minimum, probably. As said, it will depend on:
- how close Penny can get
- how bike you want to be in the frame
There isn't 'an answer'
At the bare minimum, probably. As said, it will depend on:
Well, bit harsh! The most popular and useful size lens in photography!
And remember, you can always crop. You never want to fill the frame, you'll end up chopping bits off.
All good but I'd add/clarify maybe that the usual way of getting blurred foreground/background of a sharp moving object is more about panning. Tracking the bike accurately with a medium shutterspeed to keep bike sharp but get movement blur on everything else.Horse wrote: ↑Thu Jul 06, 2023 3:49 pmTo clarify this:Mr. Dazzle wrote: ↑Thu Jul 06, 2023 2:26 pm a multi function scroll wheel where you'd imagine the zoom buttons are, it adjusts various things (shutter speed, aperture etc. Well I say "etc" Slenver's right in that there are generally only 2 adjustments )
1. How big the hole is that lets light in
2. How long it's open for
e.g. Low ambient light is likely to mean, compared the same image taken in higher light, that you need either a bigger hole (aperture), longer time open (exposure), or both.
Implications are:
Bigger aperture = narrower (distance from the camera) depth of field i.e. in focus
Longer exposure = potential for blur if either/both camera or subject move
A simple guide is that bigger (diameter) lenses let in more light. Typically the glass will have coatings to reduce reflections, getting more light in.
Going back to the two examples I used [much] earlier.
'Pin sharp, spokes 'frozen' = very high shutter speed (low exposure time). This requires good ambient light.
Bike in focus, blurred background, 'dynamic'. Requires longer exposure, with the camera 'panning' to follow exactly the bike's movement.
But let's add a third. You want the bike 'frozen' and both background and foreground blurred. Here, with good ambient light, you can use a wider aperture and shorter exposure to limit the depth of field.
@Slenver & Co. I'm dredging this from my dim and distant, so please correct if wrong.
Someone else can do ISO and implications of 'Raw'
Not in SpainMr. Dazzle wrote: ↑Thu Jul 06, 2023 6:06 pm The other problem with Motorsport, and Spain could well be different I dunno, is that 'they' are super hot on getting too close to the track IME. Silverstone in particular won't even let you get up against the chain link fence, there's a crowd barrier before that. Bastards want to keep you safe
What that means though, is that you can't poke your camera through the fence! So inevitably have to get further away to see over the fence. Or be inside it The only place that ain't true is the pit straight, which makes for boring pics.
Not as far as I know. They always seem to come with a cheapish zoom lens. More appealing to more people but not as good to those that know!
Yeah and this is way easier with a longer (bigger!) lens from further away. Helps prevent whiplash tooSlenver wrote: ↑Thu Jul 06, 2023 6:07 pm All good but I'd add/clarify maybe that the usual way of getting blurred foreground/background of a sharp moving object is more about panning. Tracking the bike accurately with a medium shutterspeed to keep bike sharp but get movement blur on everything else.
Lenses are more important, no doubt.
I think it's more complex than that. There are all kinds of methods for using partial pixels (ie. not the full red/green/blue sub-pixels in each pixel) and various interpolation methods and shit. Projectors are the main product that I know of where, for eg. 'fake' 4k is common while true 4k is still so expensive.Mussels wrote: ↑Thu Jul 06, 2023 6:29 pm Talking of megapixels I've seen complaints that phone manufacturers make up pixels with software so they can claim it's better than it is, so they would take two pixels next to each other and use software to insert another between them and claim the camera has three pixels.
Do all camera manufacturers do this and is there a way to cut through the crap?
On the screen after they've been taken, yes. In the same way that you'd zoom in on a computer monitor. Which is the same thing anyway.