And a 50mm macro, please!Less wide angle, more 200-ish mm 1:1 macro lenses!
Agreed. 14/1.4 would be great for a quick milky way pano but also useful for foreground shots during blue hourIt probably won't be cheap and not very useful for landscape at f1.4, unless you're after night sky astro shots. But then 14mm f1.4 would be a better option.
Over a year ago, there was a rummer about a 12mm f/1.2 and I was very excited, but not to long later, more info came that is was for a phone, point and shoot or something. I guess someone will say, "Sigma already had a 14mm F/1.4,"no mater how canon's version turns out finding whatever differences there are as a reason that Canon is D-worded.Decisions decisions
Naah, either the 24 or the 28, I wouldn't get both. Too close. I am honestly intrigued by the 14.
So, if Canon does listen to me (why not?), I'd get the 14 and the 35 1.2...
If Canon doesn't listen to me (why oh why?), I might get the 14 and the 28.
We will see... actually I'd love to know if there will be a TS 24, since I'd prefer that to a fast non-TS 24.
So many rumors! Canon! You have to deliver all those lenses + the ones I want + the ones I do not crave now but I will want once they appear... now! or I will not buy your lenses anymore and that will spell d00m for ya
(disclaimer: for people with reading comprehension issues, I do not think that Canon will fold if they do not release the lenses I want)
Would BR help with astro?I'm hoping for the ultimate RF 35mm f/1.2L with BR Optics for Wide Field Milky Way Panorama Shots!
I'm sure someone will eagerly attempt to explain like thisIt's a matter of personal preferences. I often use the 28mm for landscapes, because I find its perspective more natural than the 24's. I wouldn't buy the 24mm, but the 28mm I find tempting. In other situations, it's the 24mm I prefer (Leica M or TS-E 24 II).
It a purely subjective decision which cannot be rationally explained.
Using only a single frame would be an issue with edge aberrations.If a 14mm F1.4 actually becomes reality, I really hope they try to maximize vignette and coma/astigmatism correction, since the obvious use case is astronomy where edge aberrations really stand out. If it's not priced in the stratosphere (see what I did there) I might have to pick it up for some backcountry dark sky trips. I get by just fine with my 14-35/4 (as the primary focus of those trips is not astro), but gaining an extra 3 stops would be pretty awesome. Obviously IS is not needed in such a lens and would make it unnecessarily larger, so I'd be a bit baffled to see it included.
I think , "coordinated" placed in the wrong part of the sentience. I often do it and have to proof read what I wrote.True, but then even less for (ultra) wides
BTW, how can IS be "coordinated" for the 50 / 85 1.2? those lenses do not have ILIS
I'm hoping Canon's will sell for less than $2500, weigh less than 2kg and a maximum magnification of around 0.25x.Using only a single frame would be an issue with edge aberrations.
If you are stitching (eg 50% overlap) then the center quality is the primary focus (see what I did there). Normally stopped down a little to reduce vignetting when tracked in any case.
Using the 16-35/4 would require a tracker unless extreme ISO is used even with bortle 1 skies - even taking multiple images and stacking for noise reduction.
IS (and autofocus!) is not needed in such a lens for astro hence wondering why the Sigma 14/1.4 for E mount couldn't be released for EF mount.
The Sigma 14/1.4 for E mount is USD1600, has a tripod mount, lockable focus, dew heater retainer with physical aperture ring (clicked or not). Downside is the 1.1kg weight.
The Sony 14/1.8 weighs 450gm but would lose 2/3rds of a stop to f1.4. It also costs USD1600. Includes rear gel filters, physical aperture ring (declicked and locked option), MFD of 250mm
These can't be direct comparisons but an example of what can be done optically and size/cost/weight.
What magnification would you wish for at 15mm? I've heard of close-up/wide-angle but macro at that working distance would be surprising15mm macro!
Because you're losing image quality when doing corrections, or reveal imperfections that were there already.Why would the number or amount of software corrections matter?
No, because you listed a mixture of unrelated problems. You mentioned sharpness twice, but it's one of the things you lose when doing distortion corrections.Correcting for something with the actual optics is never a freebie, and always impacts other things such as price, weight, size, sharpness, contrast, sharpness, bokeh, focus speed, IS, and irreparable aberrations, would you agree?
That was me who showed those images to you.Software mainly corrects distortion and vignetting. Now, I've been shown a couple astro images on this group (single shots, not using stacks or any other modern ways to reduce noise), that were exposed for the CENTER, where the corners seemed to show more noise.
In that old thread I already explained that you just can't "expose for the corners". I would be interested to see images where you used the "exposure for the corners" technique. How do you expose for the corners exactly? Have you even tried to expose for the corners when shooting night sky or even a daylight landscapes?I don't know why you can't use such modern tools, or simply expose more for the corners, but fair enough, such a case definitely exists.
Long story short, any geometric corrections, especially non-linear, mean the loss of resolution.I've asked around many times and haven't seen the same for distortion, though. If you're talking about distortion can you spell out why this would be something to hope for?
Agreed. 14/1.4 would be great for a quick milky way pano but also useful for foreground shots during blue hour
True. But that also applies to geometric corrections accomplished optically, with lens elements. That’s why the center is sharper than the corners.Long story short, any geometric corrections, especially non-linear, mean the loss of resolution.
Fwiw I feel like there was a suggestion some lenses have a gyroscope to measure movement and report back to the IBIS unit even if they lack ILIS, but I have no links to back that up.True, but then even less for (ultra) wides
BTW, how can IS be "coordinated" for the 50 / 85 1.2? those lenses do not have ILIS