Sony and Toshiba Sign Definitive Agreements for the Transfer of Semiconductor Fabrication Facilities

Re: Sony and Toshiba Sign Definitive Agreements for the Transfer of Semiconductor Fabrication Facili

To give this some context, Intel has been fabricating CPUs at the 32nm scale since about 2010, and at the 22nm scale since 2012.
In order to know how current the Toshiba manufacturing plant is tooled up to do we need to know what scale are the wafers being fabricated at. The overall size of any given wafer isn't relevant when looking to know how current the tool set is.
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5dsr vs 5d3 question

takesome1 said:
5D IV? I think everyone is assuming there will be one. Personally I still have my pre-order in for the 1Ds IV.
I have my doubts there will be one. A 6D II sure. The 5Ds is the replacement to the 5D III, people just haven't realized it.
I think it's more likely that you haven't realized that 5Ds is the replacement of 1DsIII: it's the "1DsIV" you've been waiting for. ;)
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Stock Notice: Sigma 20mm f/1.4 DG Art at B&H Photo

Re: Stock Notice: Sigma 20mm f/1.4 DG Art at B&H Photo

infared said:
OK..so we are expecting a full report after you have put some time in with the lens!!!! LOL!
I haven't put in much time with the lens yet, but I do have some initial impressions. This lens is ridiculously sharp at f/2.8... it blows away my previous wide angle lens (the 17-40 f/4L) by a large margin. Being that the Sigma is also capable of shooting at f/1.4, it can gather substantially more light when needed (2 stops more than f/2.8 lenses and 3 stops more than f/4 lenses), but not without incurring some significant vignetting. It does retain an astounding amount of center-of-frame sharpness at f/1.4. The lens is heavy but not overly so. At $899 it truly is a bargain for what it delivers.

As for coma, yes there is some in the corners at f/1.4, and it is quite pronounced, but by f/2.8 it is entirely gone for me. In my opinion, high ISO speed noise is more of a nuisance when shooting astro than coma is, as it affects the entire image. Being able to shoot astro at 20mm and at f/1.4 with low noise and no star movement (within 25 seconds) still means a lot. I can crop out corners if needed. This lens really helps for keeping ISO speeds lower, as what was once an ISO 3200 shot at f/4 can now be an ISO 400 shot at f/1.4.
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lens/body combos for birds

7D Mark II is the ticket.

Lens wise? I don't own it, but I have read people here say that a 1.4x III Extender ($429) and Canon EF 300mm f/2.8L IS II USM ($6,099.00) is a killer combo.

If you want zoom I also read that the Canon EF 200-400mm f/4L IS USM with internal 1.4x Extender is very nice... but you really have to love birds ($10,999.00).

Personally, I would stay away from anything less than f/2.8 (except for the 600mm f/4L IS II USM) especially if you want to use an extender. That is just me.

I have the Canon EF 400mm f/5.6L (no IS) and it is a great lens in bright light. However it struggles in low light for birds. Adding a filter makes it worse. That may be more my problem because I hate to go over ISO 400. It is a very nice lens for the money. I've gotten some great shots with it. I just wish it were faster. $$$ wise it is great.


I have the 2x III Extender and wish I hadn't bought it. Should have got the 1.4x III if at all.

I shoot birds with a 70D. If I could swing a 7D Mark II right now I would get one. The price is great, and from all I read it is a fantastic camera for birds (stellar AF and frame rate). Proud for you if you get one.

I wouldn't get rid of my 70D though. I like the articulating touch screen and DPAF too much. I can see myself sitting in a lawn chair near a hummingbird feeder with the 70D on a tripod and using the DPAF and touch screen shutter release to capture hummingbirds while sipping iced tea. That idea relaxes me.

I'll add that I live in the Mojave Desert and it is very hard to get close to birds and there are not many here compared to places with forests. Long reach is a blessing.
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What's the expected life time of a pro EOS body?

kaihp said:
As for 5D2 not being a "pro body", that seems to come down to the definition of "pro body" - and who is defining it.
Here slightly south of you, Canon Denmark puts the 5D's in the pro category (note that 7D Mk2 isn't there). On Canon USA's old website, the 5D Mk3 wasn't included in the pro lineup (the new website doesn't distinguish between entry/enthusiast/pro anymore).

Yes, exactly. Anyone who has handled both a 1 series and a 5DII will know they are worlds apart, though both can be used professionally of course.

My own opinion is that Canon did raise the build and durability status of the 5DIII, bringing it closer to that of the 1 series.
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Patent: Canon 50mm f/3.5 IS Macro for Full Frame Mirrorless

Antono Refa said:
privatebydesign said:
StudentOfLight said:
Wizardly said:
https://goo.gl/DCXxJ7

There are 3 examples to this patent. None of them have an image height larger than 24mm. Example 3 is only 21.6 mm

On the other hand, example 1 is much more plausible. This looks more like an attempt at a 30mm lens for EF-M OR a lens to fit on a 1.5-inch type sensor. Back focus of 18.44 (EF-M is 18 mm). Focal length is 31mm (30 mm nominal). f/3.5 aperture. Image height is 13.66 mm (APS-C on Canon is 14.9 mm, G1X sensor is 14mm). Length is 55mm.
I'm not sure I follow. 21.6mm is full frame.

No it isn't, 24mm is. 135 format is 36mm x 24mm.

Image height, in this context, is the distance between the center of the sensor to it's corner.

sqrt(36^2+24^2)/2 = 21.633, therefore this is an FF lens.

Good catch. However, I'm still more convinced that example 1 is the most plausible. 13.41mm is the half-diagonal for the EOS M3 APS-C sensor, consistent with the 13.66 half-diagonal stated in that example for the flange distance that exists on the EF-M mount. Example 2 seems to be intended towards the 1-inch sensor size (not the 1.5 inch I had thought earlier). Example 3 could work on a 135 format (FE-mount) body with the rear element recessed into the lens by 1 cm.

Really these are just results to match half-diagonal (image heights) in existence. That a solution exists for the 135-format doesn't mean it will result in a new mount. Besides, a 135-format DSLM body could easily show up with an adaptor to existing lenses long before any lenses emerge (just like EF to FE rigs exist already).
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First Look: Sigma 20mm f/1.4 DG Art from LensRentals.com

Mt Spokane Photography said:
blanddragon said:
Sigma is an interesting company. If they could just make the autofocus more reliable, I would be more interested. Price is not a big deal when the lens has focus that I can not trust. YMMV

I don't think its possible. Canon has a big advantage, and cameras include data about each Canon lens that makes AF more reliable. Canon may have some data about third party lenses in the cameras, but it obviously is not helping third party autofocus.

...
I know my Canon lenses are way more accurate than my Sigmas, thoug a little work with the Dock worked wonders for my 35mm ART. Since I use an old Canon camera body (550D), would that make new Canon lenses less accurate for focusing, since my camera does not get firmware updates (and info about new lenses)? I just wonder how that works, as I do suspect that those lens data included in camera is primarely for corrections, not for focusing.
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DXO tests the 50 f/1.8 STM

Sabaki said:
I have my bodies and lenses. Last thing I think of when I'm out in the field is whether my kit is qualified according to DXO or not.

Canon is a superb brand, do we really need a dubious body to qualify that for us?

As I said before:
Maximilian said:
Short answer:
Forget DxO scores. Go out and shoot photos 8)
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Review - Canon PowerShot G5 X by PhotographyBLOG

fox40phil said:
how about the Sony DSC-RX100 Mark IV ;)!? I would take this small camera, if I had enough money^^.

lol I still can't believe Sony wants $950 for that thing. I mean I literally cannot believe it. Meanwhile the Canon equivalent is $600 or $750 for EFV and all the extra knobs and dials.

I'm really glad they brought back the articulated LCD that I had on my G11. I love being able to flip it over and close it.
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Canon PowerShot G5 X at Canon USA

AvTvM said:
Mr1Dx said:
LDS said:
AvTvM said:
Sure winner of ugliest camera of the year award! :o

Yes, it looks too much like a Sony...

What Sony mirrorless are you referring to?

Probably a reference to sony A7 styling which also has an ungainly hump on top - but overall not as ugly and disproportionate as G5X.

I was referring to the excellent design of Sony A6000 and RX100 series, especially Mk. iII and IV. I want a rangefinder-type styling - with EVF not in central hump but left top corner. Basically a cross between EOS-M3 (i like the good grip up front) and Sony A6000 (EVF top left).

All my DSLR gear is Canon. I have couple A7 series bodies and few Canon compact bodies. I would vote this as an "ugliest camera of the year"
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DXO finally re-tests EF lenses on the 5DS R

Stu_bert said:
PhotographyFirst said:
For a Sigma or other 3rd party lens, the flange distance doesn't make any difference. The optical formula still has the elements in the same positions and sizes between camera brands. It just mounts at a different position.

The vignetting variation is most likely due to the sensors themselves. Which is interesting, because I never thought there was much difference in that regard.

Hmm. But surely it does. In the same way the different micro lenses might affect it, in terms of how they alter the path of the light, then the distance from the sensor will affect where the light falls?

Would comparing vignette on a 5d lens, with somewhat different sensor tech to a 1dx with the same lens, show how much the sensor does contribute?
Read this technical piece by Brandon from Lensrentals:
http://www.canonrumors.com/forum/index.php?topic=26782.msg529529#msg529529
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Focusing issue with the 35mmf 1.4L II

d said:
Interesting to read about your experiences with this lens, Eldar and Viggo.

I purchased the 35L II about a week ago, and yesterday had my first chance to play with it, on my 1DX. AF performance is actually slower than I was expecting, which was a surprise.

I haven't done an AFMA yet, but close range shots seem pretty sharp mostly, while images focused close to or at infinity are all quite soft, with the AF being obviously off.

Quite possibly it'll be corrected with an AFMA adjustment, but I also own the 85L II, and get good results from that without any AFMA adjustment dialled in.

I'll report back any interesting findings once I've spent a decent amount of time with it.


d.

Thanks for sharing, good to see others share their experience also, not much to find.
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Need NIKON Teleconverter help please...

dcm said:
The second link lists lens compatibility (55-200 is not listed) with this notice: "NIKKOR lenses not listed cannot be used with the AF-S Teleconverters. The rear elements of NIKKOR lenses not listed can contact and damage the Teleconverter element and must not be attached."

Good point! I've always been unimpressed with Nikon TC's. Its a rats nest of lens compatibility. I'd always suggest AF-G lenses for the best compatibility, but they are more expensive.

It might cost less to buy a used third party long telephoto lens, but even 600mm is not long enough as far as I'm concerned. I've sold my Nikon DSLR's, but kept several lenses and a couple or three 35mm film bodies, including at least one that will autofocus.
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