Posts

Kit. · May 24, 2019

Sator said:
Funny, we never used to call 35mm format, "full frame" in the film era.

That's probably because EOS IX and similar cameras were a market failure.

There also were 135 format film "half-frame" cameras, but too far ago for most of us to remember.

old-pr-pix · May 23, 2019

Mt Spokane Photography said:
Sports used to be done with 4 X 5 press cameras, photography was a high skill. Automating things to bring those skills into the hands of ordinary photographers has driven the camera market. Autofocus, interchangable lenses, built-in light meters, rear lcd's, TTL viewfinders, its all about making the once difficult easier to do.

Absolutely. And then folks wonder why less and less value is placed on individual photographs when the skill required to produce them is diminished. Anyone can push the shutter button now and almost all the technical aspects are automated to produce a reasonable image. Next the advent of deeper AI will not only track focus but will suggest composition. While great photographers will continue to evolve and push the edges, it is the 'just average' photographers who will continue to be displaced IMHO.

clippingsolutions · May 22, 2019

All the photos are gorgeous. Glad to be here.

May 21, 2019

lawny13 said:
No, I am not relying on different physics. But as I was implying and as you pointed out refraction when it comes to optics like elements can contribute to what you see. I know what the definition of CA is. What is the exact physics behind it? Is it not different wave lens reaching different portions of the lens, especially when the light is bend aggressively and not compensated accordingly? So I when I say that generally I wouldn’t put optical elements in the frame to judge CA such. As gems or glass or ice etc it is to eliminate a potential contribution to the result. After all if one holds a gem up to the life and twist it this way and that one can general manipulate it to see a verity of colors. That includes purple and green those it not? So gems do bend light and can be a cause of a higher than “usual” incident light into the lens, which one can’t attribute.

Yes, the physics is the same, but you're relying on physics at a vastly different scale. Refraction from lens elements results in separation of wavelengths on a µm-scale, refraction from an object in the field of view is not the same. From the standpoint of a subject LoCA results from reflection, not refraction. Consider: why is it that LoCA – no matter the source – shows up as purple and green? To (re)quote you (with typos corrected): "After all if one holds a gem up to the ~~life~~ light and twists it this way and that one can [in] general manipulate it to see a ~~verity~~ variety of colors." That's obviously true, so why does the LoCA observed in jewelry pictures* not show a variety of colors, but rather only two? Because the LoCA is not resulting from refraction through the subject, but only through the lens elements.

*There's a caveat there, that the gems need to be clear. If the gem is colored, the light from it will not be white and the way in which that light is refracted by the lens elements will be affected. But that's not the case here, as the jewelry under discussion contains only clear gems.

lawny13 said:
Of course if this was shown for those interested in taking pictures of jewelery specifically I get it can be useful. But as a blunt example of CA control... eh, grain of salt.

So if one is interested in sharpness, ISO 12233 charts are only useful for those interested in taking pictures of flat, printed subjects?

Regardless, look at the jewelry LoCA image, and notice that there are purple/green-fringed gems and that the setting is also purple/green-fringed, and that the intensity of the fringing is equivalent between the two. So let me ask you again, as an applied physicist – does solid metal refract light? If it does, then it's possible you're correct. But of course, we both know it doesn't.

As I stated previously, the 'extreme case' of LoCA is a specular highlight, and it really doesn't matter if that highlight is from a gem, polished metal, or another highly reflective surface.

Here's an example from a review of the RF 50/1.2. There is LoCA on the ring, no gems required.

Having said that, I do agree that the LoCA on the RF 50/1.2 is very well controlled.

Cryhavoc · May 21, 2019

Old thread, but for pc users, this works great.
I picked up a pristine 1D MK IV and found that its shutter count is only 19,460.

btw, you will need to download winrar to unpack the file.

bergstrom · May 21, 2019

no worries, thanks Graham.

Michael Clark · May 21, 2019

Architect1776 said:
I would suspect that this is Canon looking at future Sony a9 etc. and wanting to assure canon users that there is a real pro camera being tested right now. If too tight lipped for too long too many will jump ship and then it is hard to get them back. Just ask Nikon that is still struggling after Canon crushed them with the EF system. Nikon assumed that their pros would stick with them yet they were abandoned in droves until their pro market was left to rich amateurs rather than the pros along the sidelines and at major events.
It sounds like canon is trying to get ahead of that mass exodus.

The pros, in the kind of numbers that matter to Nikon and Canon, have already left the building. Not to go to Sony or Panasonic, but to a career where they can still make a living. The premium camera market today is not being driven by pros any more, it is being driven by enthusiasts and hobbyists with lots of money to spend. This sea change has been coming for a while, but seems to have reached critical mass around the time the 1D X Mark II and D5 were released.

Ozarker · May 20, 2019

Mikehit said:
Concidentally, I was wondering the same thing only last week: I tweaked the clarity and thought 'Whoa! That's garish. What's happened?" I was not sure if the tool had changed because it was always touted as something that tweaks midtones to improve apparent sharpness, then I wondered if it depends on the starting image in that to get a difference on an image that has good lighting, and good small-detail contrast you need to use it more heavily. But I could not escpe the feeling it was not what it used to do.
Then as soon as I used the texture it immediately felt to me that it was what Clarity used to be like. But maybe there is some auto-suggestion coming in. Whatever is happening, I really like the effect of the texture slider.

I like the texture slider too.

Ozarker · May 20, 2019

Click said:
Lovely girl. Beautiful portrait. Well done, Canon FanBoy.

Thank you Click.

blaydese · May 20, 2019

By the way, Photomatix Pro 6.1 is so nice and smooth and has come a long way since 4.1 days.

https://www.hdrsoft.com/

Peace! 8)

RayValdez360 · May 19, 2019

wtlloyd said:
Work all the weekends you want, you're still paying $500 just for bragging rights. Plenty of top line flashes that do the same thing for half the cost. So, one flash plus a backup, or a very nice label.
[/QUOTE
outside of godox v1. its a good flash. i recently finally lookedat all the pros vs. a regular speedlight. it simply works a lot better. peopel that do weddings or events that require lots of flashes would understand this better than anyone else. i dont have it but i am tired of my 600 ex batteries running low, slow recycle, no fires, and hard time getting gels on and off. then i sometimes use a profoto strobe to light a room. i have to put it in slave to get it to work

bhf3737 · May 19, 2019

EF 11-22 f/4 works well with EOS R for 4K video. The 11mm wide end cropped is still wider than what I like for video but the 22mm zoom end is close to to 37mm FOV and anything in between is usable. An advantage is that the var ND mount adapter can be used for compensating the shutter speed. This couldn't be done on other cameras, such as 5D IV.

Sleeplessin · May 19, 2019

Thanks caMARYnon and JuanMa

If you like it don’t forget to subscribe to my YouTube channel

Sleeplessin Time Lapse

"Sleeplessin" is a time lapse, hyperlapse and drone hyperlapse video content production company in Switzerland. Focused on landscape and cityscape videos for...

www.youtube.com

Ozarker · May 19, 2019

bokehmon22 said:
I said if I was a wild life photographer (I am not), I would prefer eyeAF.

Don't quote me out of context. I don't care what you use or want. You add nothing constructive to your post. Just use whatever make you happy. It just a tool. I'm not a fanboy of any brand.

Stop quoting me and respond with useless with info.

Some people have no sense of humor.

SecureGSM · May 18, 2019

it comes with a substantial focus shift as a bundle. please note

Mark3794 · May 18, 2019

Normalnorm said:
I am referring to the speed booster performance. The Canon's adapter for the M series should work perfectly as they make it. The third party speed boosters are the unknown quantity.

Sorry my bad i meant that i already have the speedbooster

Maximilian · May 16, 2019

Ciliatus said:
...
So i guess the best option would be to sell the Tamron and buy the Canon version.
...

To make your invest a little less hurting look at the IQ comparison at TDP.
To me it looks like the Tamy is a little bit better at 70 mm while Canon is winning as soon as it goes mor tele. At 300 mm the gain in IQ for the Canon is obvious.
But don't expect too much profit selling your Tamy :-( . That's always the prob with 3rd party lenses. 150,- € would be a deal IMO, depending on its condition.
Some prices on ebay are ridiculously high.

Edit: ~~If you can wait some time, wait until June. I'd expect Canon Germany to start their summer promotion then. Maybe this lens could be included.~~
Summer promo is already live. Only L lenses are included.

Aussie shooter · May 16, 2019

unfocused said:
Comments like this always make me cringe. Stills and video are two very different animals. The essence of video is to capture motion and sound. It is to show subjects moving through space and time. Photography is about stopping time. Carving a split second out of the continuum and holding it up for examination. Certainly the technology of still and motion cameras have been converging, but the thought that you can simply carve out a single frame from a video and have a great picture betrays an ignorance of both still photography and video/film.

Absolutely. Taking a single frame from good video would produce a terrible still image as a general rule, as the shutter speeds required to produce good videography rarely match the shutter speed required to produce a good still in the same situation. While there are similarities in the art forms there are also massive differences.

Chaitanya · May 15, 2019

Jethro said:
'monsoons'?

Yes, monsoons the best time in Western ghats for macro photographers. Most animals(large and small) time their reproduction for monsoon season. This is what the ghats look like for 4-5 months of year.

Rocky · May 15, 2019

StoicalEtcher said:
Graham,
Many thanks for digging these out.
Cheers
Stoical

There is a remote possibility that is due to the “aging” of the camera. I have a 40D that is very reliable in AF for 4 year. After that it becomes less and less reliable.

MrFotoFool · May 15, 2019

Yes nice. I love blue light photography, especially with some city (or marina) lights mixed in.

crazyrunner33 · May 15, 2019

Correct on the balance. If the camera wants to tilt immediately when it's turned off, the balance is way off. Even with a gimbal that has the power to handle an out of balance camera, you want it as close to balanced as possible to save on wear and tear and extend the battery life.

From the old steady cam days, you wanted to have it slightly bottom heavy, enough that it would take around 1 full second to swing when tilted 90 degrees and released. When balancing a gimbal, I aim closer to a half second when the gimbal is powered off.

Graphic.Artifacts · May 15, 2019

Those owls have fully dialated pupils and by the flash shadows it appears to have been quite dark. If it was just a bit of HSS fill I wouldn’t have commented. There’s also the issue that it’s an advertisement for a guide to using flash for bird photography so the photos are being used commercially. I’ve shot thousands of owl phots and have never used a flash so I don’t feel there is a need. That’s my opinion. I’m aware others disagree but If you did that in the refuge where I volunteer I’d eject you for harassment.

magarity · May 14, 2019

I gave up waiting for a new model that is small and has RT. Bought a used 90-EX on Ebay for super cheap. Works great on my 6D as a little fill and the 'easy wireless' mode is actually handy too.

Pape · May 14, 2019

I think this is alternate-leaved golden-saxifrage

I tooked this with RP ,40mm 2,8stm with 70mm extension ,so around 2x . F16 iso 800
20 picture focus stack then it stopped .
I guess problem is with high magnification ,on some point there will be too small sharp areas for autofocus detect it and it thinks pic is done ,when cant find sharp.
Hard to find enough still weather for 2x focus stack

Tried also put start point to stamen heads but they are too small for autofocus to hit,and somehow touch drag focus point works very bad with high magnification.
I wish could move focus point on 5x view on focus override,with arrow buttons.

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