Review: Sigma 24-70mm f/2.8 OS Art by Lensrentals.com

AJ said:
Jopa said:
Mt Spokane Photography said:
Try using some of the 20 year old Sigma lenses. I had 5 of them, they became paperweights when Canon DSLR's came out.

You still can MF them, especially on a mirrorless body :)
Unlike Canon FD which doesn't even mount

They will mount on a mirrorless. (With the correct adaptor) Canon at the time of the switch produced an FD to ef adaptor with the optical conversion built in. Apparently there is not enough demand to warrant that any more... Wonder why- it's not as if optics have progressed any in the last 40 years. ::)
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EF-135 f/2L at Adorama for $599 (USED)

Re: EF-135 f/2L at Adorama for $599

gruhl28 said:
That's a used lens. They are still selling new ones for $999

And...it's in "G" condition.

Barrel appears to have been used heavily, showing multiple dings, scrapes/scratches, heavy brassing. Lens glass may have fungus, excessive dust, and/or scratches that can affect picture quality.
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Review: Canon EOS M5: \

Truck rolled/slid down the hillside across the lake earlier this year - just over 1000 meters away. Thought I'd get a closer look with the M5, 100-400L II, and 2xIII on a tripod so see how the combination performed.

Not bad near noon in 90 degree weather. You can make out the Sheriffs Office markings on the cab if you open the image and enlarge it. Only adjustment was white balance. Need to try it out on some closer subjects next time.

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LensRentals Review: Sigma 24-70 f/2.8 DG OS HSM Art

However, Canon and Nikon both show it off better, and so when I’m looking for a 24-70mm lens to use as my next all around lens, I’m opting for the Canon 24-70mm f/2.8L II over the Sigma 24-70mm f/2.8 Art Series.

IS has its price in this focal length as it seems. Nikkor seems to struggle as well, at longer FL:
http://www.photozone.de/nikon_ff/1010-nikkor2470f28vrfx?start=1
Not to mention, it's noticeably heavier and more expensive.

Many people criticize Canon not to include IS in the 24-70/2.8L II. Seeing these results with stabilized 24-70 lenses, I'm glad they did omit IS altogether...
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Samyang 14 mm f/2.8 vs. Irix 15 mm f/2.4

soldrinero

Im looking at your image both on CR and Flikr and both seem really dark to me. Your settings are in the ball park but just for comparison I find that with a 14mm 2.8 25-30sec at iso 3200 or 6400 give me images bright enough to manipulate. And an aperture of 2.4 is not even a half stop faster than 2.8, so times and iso won't vary much.


Bottom line can't see stars in your posted images for what ever reason.
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Lomography Announces the Daguerreotype Achromat 2.9/64 Art Lens Brass, Chrome Plated

biscuit said:
AlanF said:
Lomography sells the Holga pinhole camera with hole diameter 0.25mm. The price has been reduced to £18 from £45. The plastic body is worthless so the £18 must be for the pinhole lens. That works out at £3,666,933 per square metre of pinhole. Must be the most expensive square metre of air anywhere. Makes their latest achromat lens look an absolute bargain.

I get £18/(((2.5e-4)/2)^2*3.14159) = £366,693,298. Your price above seems an absolute bargain.

It's only a factor of 100 out. Next time I should use a calculator and not do it in my head.
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Two New Big White Lenses Coming Next Year [CR2]

neuroanatomist said:
It would already a bit of a stretch for Canon to release a native f/8 dSLR lens (built in TC means 'native'), but I can see it happening now that bodies even down to the xxD line have f/8 AF points across the frame.

Down to the xxxD line, even! The T7i/800D inherited the f/8 capability of the 80D.
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Could This Be the Goal of the 6D Hysteria?

StudentOfLight said:
With imaging I'd tend towards the lowest practically usable ISO in order to deliver the cleanest files. In ideal conditions I'd use low ISO not anything else.

I guess that's only natural and I honestly don't know anyone willing to increase ISO just for the sake of it. When I'm shooting landscapes, ISO 100 and tripod is a given. But when doing reportage, Auto ISO 100-3200/6400 with minimum shutter speed of 1/60s or 1/125s is my bread and butter and I could not care less about used ISO. So back again to individual priorities. I guess that hardcore landscapers are not very pleased with 6D II, but they can always pick up e.g. Sony A7rII and adapt their Canon lenses, if they feel they can't part with them...
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Eizo ColorEdge CS2420 monitor calibration

bitm2007 said:
My RGB target was produced using a HDMI cable so is saved as CAL 3 (in position 6) in the monitors mode menu, I assumed that it would similar to the precalibrated Adobe RGB target in position 2 of the same menu, but it's 0.25 of a stop darker. Maybe that's an unreasonable assumption on my part, given that different color meters were used.

Isn't there difference in nits? Or are they both targeted for 100 nits? Sometimes, there can be "Photography" profile with AdobeRGB gamut, D50 temperature and 80 nits only. Useful for soft proofing a print but a bit warmer and darker, than what is usually normal to see.
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SIGMA Announces the 14mm F1.8 DG HSM Art Series Lens

NorbR said:
BeenThere said:
While we are waiting for Sigma to price their new 14mm f1.8 lens, how about some guesses as to their U.S. Price point. Take a WAG at where you think it will be priced, not where you want it to be priced. My guess is $1299.
I'm less optimistic.

The lens looks a lot like the 12-24mm, it has the same kind of large, aspherical front element, so I would guess it will be priced at least the same. So $1599.
And frankly I wouldn't be surprised if it was higher than that. The 12-24mm had competitors, this one doesn't, it's really the first of its kind. I think Sigma could get away with a pretty high price point.

I hope I'm wrong, of course. ???
You win with exact guess of $1599. U.S.
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