AdamT

AdamT

Lives in United Kingdom Northwest, United Kingdom
Works as a Commercial / Wedding / Event / Press Photographer
Joined on May 23, 2002

Comments

Total: 97, showing: 1 – 20
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On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

I have to be honest that I didn`t like either of the 16-35L models and found both optically poor for the price even when you didn't get a decentered one the edges were poor , thankfully they`ve now made an F4 model capable of living up to the L badge , it`s got IS too .

Direct link | Posted on Apr 26, 2015 at 14:20 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

The worst are Micro USM - as in the budget canon USM & Nikon AFS lenses inc the Nikon 18-200VR because those piezo rotors are tiny so that they fit into a space the size of a conventional DC motor to drive an orthodox gear focus system - many die within warranty, Pentax had the hardest time with them failing constantly . not good .

Direct link | Posted on Apr 25, 2015 at 18:48 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

DC motors almost last forever too - witness the number of Canon lenses from the late 80s still running such as the original 50mm F1.8 Mk1 and 28-70 F3.5-4.5 . the 80-200L F2.8 "magic Drainpipe" was powered by last forever linear motors whereas its standard zoom brother the 28-80L F2.8-4 was powered by a ring USM - most of these are now in the bin whereas I bet the only dead 80-200s are dead because of fungus or droppage..

Thankfully canon now have a thing about Stepper motors which are as reliable as DC and as quiet as USM .

Direct link | Posted on Apr 25, 2015 at 14:23 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

Canon won't hold parts for devices which have been out of production for 10 years or more, this is typical of Japanese manufacturers - this includes holding existing stock of said parts it would seem sadly in the case of Canon.

other makers such as Sigma, Yamaha, Roland, Korg etc will keep parts so long as stock exists thankfully but it would seem that Canon do not for any length of time ...... the only hope for that 16-35L is that the part gone is replaceable with one from another lens - even if the part is slightly different such as the Ribbon tail for the USM Rotor being a different length etc .

I`ve repaired lenses like this before - EG:- the rotor from the 70-200F4L IS works perfectly on the 17-55 F2.8 EFS but the tail is 2" longer so different part number (easier to fix the lens with an existing part I had) maybe there`s a similar option for the 16-35L Mk1 - there isn`t for my 28-70L which is now a manual focus lens for extreme emergencies (or using on the EOS-M)

Direct link | Posted on Apr 25, 2015 at 09:01 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

Likewise my 28-70L (which is better than the 24-70L Mk1) .. I can`t find a USM Rotor from a production model which fits either .

Saddest loss are the numerous 85mm F1.2Ls which can`t be repaired for the same reason and are "focus by wire" so can`t be manual focussed either - expensive doorstop because canon can`t be bothered to make a batch of USM Rotors (the part which wears out in all USM lenses)

Direct link | Posted on Apr 25, 2015 at 06:21 UTC
On Canon EOS 5D Review preview (15 comments in total)

Still worthy 10 years on because you can shoot it at any selectable ISO in RAW and it`ll be excellent, doesn`t ever get noisy (about half a stop or less noisier than the D700 or D3S in Capture one at ISO3200) , even the DR is good - JPG engine is both dated and limited but as a RAW only camera, it stands up .. Pixel level sharpness (therefore resolution of fine details) is better the D700 or D3 due to a weaker AA filter .

Focus is fast enough , though really best seen as a centre focus only system due to the lack of cross sensors anywhere else , excellent on batteries too.

Direct link | Posted on Apr 24, 2015 at 14:38 UTC as 2nd comment
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)
In reply to:

Pedro Moreira: Contrary to what people are saying here, Yongnuo 50 1.8 its a very good lens for half the price of the Canon one.
Yes, it has noisy autofocus but with very good acuracy, better than Canon!
It even has better bokeh since it has 2 more blade than Canon has! (5 vs 7)

Problem is that there is no shortage of used canon 50s at the same price as the Yong - no contest .......... there`s far more to Bokeh than the number of blades in the iris ..

Direct link | Posted on Apr 24, 2015 at 10:12 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (160 comments in total)

I hope its better than the 50- F1.8 was

Direct link | Posted on Apr 24, 2015 at 07:24 UTC as 18th comment
In reply to:

The Davinator: The best sensor maker keeps getting better.

I`ve still got 2Gb cards about Neil - in RAW the D50 can still cut it at all its available ISOs, you just need a very wide ranging superzoom or a lot of lenses to keep the cropping down - the LCD is pitiful of course but pretty much irrelevant as anything can be adjusted in RAW - LOL .......

I guess Sony maybe able to market the A7S sensor for FF video - RED may move up in sensor size for instance

Direct link | Posted on Apr 19, 2015 at 06:58 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

BTW for the above argument, at pixel level at high ISOs the A7S beats the D4S easily for noise , not suprising as it`s pixels are twice the size but per-print or the D4S or even A7R resized down , I have doubts that the gap is worthwhile the loss in resolution - I`d go for the A7R if they`d put an AF system in it which is at least almost competitive and more than anything , electronic 1st curtain on the damn bear-trap shutter

Direct link | Posted on Apr 19, 2015 at 06:41 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

I don`t know if anyone else would use the A7S sensor - 12Mp has fallen below the "minimum" threshold of resolution which is even as low as 16Mp because M43 and Fuji are hanging in there . for those with loads of lenses (to alleviate the need for cropping) and/or smaller print requirements, the A7S is perfect but trying to convince camera manufacturers to build a cam using it would be hard (EG:- Canon ditched 12Mp FF with the 5D Mk1 many years ago, even the D700 looked Old-tech on launch) .......

Funny really as I`ve still got a D50 which only goes to ISO1600 but can be shot in RAW at any ISO with no noise issues - only 6Mp of course, actually still viable with a Tamron 16-300mm

Direct link | Posted on Apr 19, 2015 at 06:37 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

Agreed about the GX7, it`s been a very useful tool as a seconday cam to my work but the problem I have with it is that there are some situations where you can`t use the mech shutter due to its loud metallic clack or because of shutter shock and also can`t use the E-Shutter either because of severe banding due to the lighting. Panny really need to put Electronic 1st curtain in their high end cameras . IF the EM1 uses a panny sensor , they have no excuse as to why they haven`t - in fact the GM series have EFC and definitely the same sensor .......

Direct link | Posted on Apr 18, 2015 at 20:04 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

Agreed Neil, there is a lot more to performance than just the sensor, though with CMOS, a lot more is on chip than the old CCD days .. For the record, I have no confidence in DXO`s scores whatsoever, they seem to blow with the wind (or just blow , period)

Direct link | Posted on Apr 18, 2015 at 19:25 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

Yeah, Neil, I`m with you regarding noise (especially at high ISOs) but DR ? , there`s a marked difference between the GX7 and the EM1 in highlight recovery, in fact I`m amazed at how much can be recovered regardless of sensor size, I find the GX7 is pretty much typical of M43 16Mp sensors from the EM5 and newer ...

Direct link | Posted on Apr 18, 2015 at 18:37 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

Different to the GX7 sensor (I have that camera) definitely - for a start the GX7 has no PDAF pixels and secondly it doesn`t have the same highlight recovery as the EM1 ..
.
I don`t use JPG engines where any kind of detail is needed, especially Olympus ones which slam loads of smeary Noise reduction over base ISO images even with the noise filter setting on "Off"
.
ISO6400 looks like ISO6400 regardess of lens - Lenses do not reduce noise levels .

Direct link | Posted on Apr 18, 2015 at 15:57 UTC
In reply to:

SHood: Both of the 43 sensors are new. The first 16mp sensor from Sony was the IMX109.

https://chipworks.secure.force.com/catalog/ProductDetails?sku=SON-IMX109
.

Olympus is currently using a version of the Panasonic sensor in their latest bodies.

http://chipworks.force.com/catalog/ProductDetails?sku=OLY-E-M1_Pri-Camera
.

My guess is that the 20mp will be initially reserved for the E-M2, while the other Olympus bodies will get the new 16mp.

I doubt there`ll be an EM2 (how would you slot a cam inbetween the EM1 and EM5 series) - there WILL be an EM1-Mk2 however which likely will debut this sensor .

Direct link | Posted on Apr 18, 2015 at 15:40 UTC
In reply to:

amonsul: No really. Again taking news form SonyAlphaRumors without quoting the source?
http://www.sonyalpharumors.com/sony-releases-three-new-sensor-two-of-them-for-micro-four-thirds/

..

Direct link | Posted on Apr 18, 2015 at 15:39 UTC
In reply to:

The Davinator: The best sensor maker keeps getting better.

Didn`t know the EM1 had a Panasonic sensor, it`s not been used in any Panasonic body that I know of .. the output reminds me more of the Toshiba 24-Mp APS-C one used in the D7100 with its high-ish noise floor (base ISO) but better at high ISOs than the GX7 or GH4 sensors especially for retaining colour and the highlight recovery in RAW is beyond any Panasonic sensor I`ve seen . I`d guess the EM1 sensor was a Toshiba .

Direct link | Posted on Apr 18, 2015 at 15:36 UTC

I'm amazed they`re not weather sealed .. if Pentax can seal a cheapo plastic 18-55 Kit lens (and 7 years ago too) then surely Sigma should have made some effort ....
looks like it`ll handle well on the 1DS-III , hopefully it`ll optically be in the same ballpark as the canon L

Direct link | Posted on Feb 13, 2015 at 08:19 UTC as 9th comment | 1 reply
In reply to:

AdamT: Why use the 7R shutter shock monster with an adapter attached instead of a proper DSLR like a 6D or D800E? where the samples would have stood a chance . could at least have used a regular A7 with electronic first curtain

I didn`t realise that (it wasn`t mentioned), I`d lose the 7R though as a lens test camera.

Direct link | Posted on Feb 12, 2015 at 14:51 UTC
Total: 97, showing: 1 – 20
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