Glenn Barber

Lives in United States Irvine, CA, United States
Works as a Intellectual Property Management
Has a website at www.graymatterllc.com
Joined on Oct 7, 1999
About me:

Software Developer in Southern California
Former LA Professional Photographer
(Fashion and Illustration)
SONY A1,A7R4 A6500 (see gear list)
Former Canon 5DII/7DII
Former Nikon D100/F100 owner

Comments

Total: 98, showing: 1 – 20
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Wait - don't the optical formulas for DOF resolve to physical aperture size - period. not aperture ratios, or focal length I discovered this when doing 4x5 and researching the optics. Bigger formats require larger apertures for the same aperture ratio.

Link | Posted on Jan 23, 2022 at 01:05 UTC as 52nd comment

Don't need an off-camera recorder, but this was of the funniest best done reviews Ive seen...

Link | Posted on May 30, 2021 at 01:12 UTC as 13th comment
On article Sony a1 review (2589 comments in total)

I ran into some surprising misbehaviors with my A1 where the custom shoot set setting for exposure compensation in Shutter preferred with Auto ISO would not work properly or consistently in the initial release or in the first firmware update. These behaviors were never an issue with any other FF Alpha camera. I notice now some other strange behaviors being reported - like IS not activating. For me it was a huge disappointment because I could not shoot with settings like those on my A7R4 and A9. Almost seems like this camera had so many new features there wasn't enough focused testing on on legacy behaviors.

Link | Posted on Apr 23, 2021 at 00:35 UTC as 172nd comment | 5 replies
On article Sony a1 added to studio test scene for stills and video (675 comments in total)
In reply to:

Glenn Barber: I can't really see much discernable difference between the A1 and A7R4 at typical ISO's and about the same level of noise (unfortunately) - where there is much more visible difference with the A1 and Canon R5 or Nikon Z7 II

Does anyone else see something Im missing - doesnt look like a lot of improvement over the A7R4 - but then its nearly as good. However it does look noisier than the A7R3. I was hoping to see a more visible noise improvement at 1600 or 3200 ISO

As I already have a A9 and A7R4, I was looking for a camera that might cross the line and cover both well. While I can see that image quality of the A1 is very close to the A7R4 - I was hoping for a bit more noise reduction in background darker areas - a bit like the A7R3 had. I am waiting to see the dynamic range testing where they push shadows.

Link | Posted on Feb 19, 2021 at 17:34 UTC
On article Sony a1 added to studio test scene for stills and video (675 comments in total)
In reply to:

Glenn Barber: I can't really see much discernable difference between the A1 and A7R4 at typical ISO's and about the same level of noise (unfortunately) - where there is much more visible difference with the A1 and Canon R5 or Nikon Z7 II

Does anyone else see something Im missing - doesnt look like a lot of improvement over the A7R4 - but then its nearly as good. However it does look noisier than the A7R3. I was hoping to see a more visible noise improvement at 1600 or 3200 ISO

I typically look at the fine detail in the clothing on the beatles and in the feathers as well as on the currency. Also I pay attention to the noise in the darker areas as ISO is raised. Doing Bird photography with extreme crops with the A7R4 - often having to shoot at 1600 or faster and pushing shadows I am a bit more critical than most. So as I said not much difference to my eye on the A1 and A7R4 - a little more difference comparing the A1 to the Canon and Nikon

Link | Posted on Feb 17, 2021 at 21:38 UTC
On article Sony a1 added to studio test scene for stills and video (675 comments in total)

I can't really see much discernable difference between the A1 and A7R4 at typical ISO's and about the same level of noise (unfortunately) - where there is much more visible difference with the A1 and Canon R5 or Nikon Z7 II

Does anyone else see something Im missing - doesnt look like a lot of improvement over the A7R4 - but then its nearly as good. However it does look noisier than the A7R3. I was hoping to see a more visible noise improvement at 1600 or 3200 ISO

Link | Posted on Feb 17, 2021 at 20:47 UTC as 24th comment | 10 replies
On article Sony a1 review (2589 comments in total)

But does it have an AA filter - or not?

Link | Posted on Feb 11, 2021 at 17:34 UTC as 401st comment | 1 reply
On article DPReview TV: Sony a1 review (679 comments in total)

Does this camera have an AA filter - how strong? As a A7R4 users I am hoping not...

Link | Posted on Feb 8, 2021 at 18:02 UTC as 16th comment
In reply to:

D_Surrey: Just a couple of things to note: the Mavic 2 Pro doesn't/can't rotate the camera to portrait mode which was handy for panos etc. Also it lacks 4k cinema resolution. No biggie for me personally but no doubt gonna be a problem for some people.

FYI - PolarPro has circular polarizers for M2P - they snap on with a quarter turn to replace the squarish clear filter on the pro which is similarly removeable.

Link | Posted on Aug 24, 2018 at 22:58 UTC
In reply to:

D500 001: Nice feature for sure. Would like to see a hand triggered model.

Hand squeeze makes more sense... Assuming you are walking around with the monopod collapsed as I do - what you want is it to drop to the ground and you firm it to that position with a squeeze. Im not buying a $500 foot pump to lock a monopod into position.

Link | Posted on Feb 24, 2018 at 05:31 UTC
On article Sony a9 first look videos (299 comments in total)
In reply to:

Glenn Barber: My biggest concern is how this mirrorless focuses with Longer lenses 300mm. I have a A7 and A7R and neither focuses quickly with adapted long lenses. If this is to be a sports and wildlife camera - focus acquisition with long lenses is critical.

Mistake here I have an A7r & A7rII - so usually it focuses wel with native and adapted lenses however nothing near 300 mm focuses worth a damn.

Its. Promising to hear Rishi's feedback - but I'd say I'd like the reviews to cover more details like this.

Link | Posted on Apr 27, 2017 at 02:07 UTC
On article Sony a9 first look videos (299 comments in total)

My biggest concern is how this mirrorless focuses with Longer lenses 300mm. I have a A7 and A7R and neither focuses quickly with adapted long lenses. If this is to be a sports and wildlife camera - focus acquisition with long lenses is critical.

Link | Posted on Apr 20, 2017 at 01:51 UTC as 46th comment | 4 replies
In reply to:

Siobhan A: So to be clear.
a 1.7% year-on-year decrease in sales

After the upcoming Canon mirrorless FF announcement an possible Nikon mirrorless FF announcement, I'd expect even greater losses.

Good news is they are making money , bad news is they are selling fewer cameras and have a smaller market share than they did just before they switched to SLTs and mirrorless. More bad news, the profitable sensor division is getting removed from imaging.

Every camera maker will suffer as smartphone cameras get better and better. The only buyers left for interchangeable lens cameras will be the enthusiasts and pro's. This means Nikon, Sony, Canon, and whoever will be fighting for what's left. Samsung was smart to get out of the fight - and we can expect more consolidation to occur, perhaps with Sony exiting the camera system business or buying up more of the competition. Whatever they do, they need to beef up their QA and Support/Service if they are going to capture more of the pro circuit.

Link | Posted on May 3, 2016 at 21:19 UTC
In reply to:

Glenn Barber: Yes - and we wish they had just gotten Canon to use their sensors in the pro line like Nikon did. They seem to have the best sensor technology available but can't create a camera menu system that makes sense or figure out how to QC and repair their high end products.

Its hard not to be concerned about Canon's image quality - while at the same time enthusiastic about the rest of their gear. There are quite a few of us who shifted to Sony A7R for landscape and illustration, but still stubbornly hold on to the Canon gear for wildlife and sports. I am not sure I would have bothered going with Sony if I hadn't suffered years without a workable replacement for the 5D that didn't have excessive noise in the shadows, limited DR and pattern noise. As much as I love the 7DII for Birds, the need to overexpose to hold up detail in the shadows and subsequently blow out highlights is a regular frustration.

Link | Posted on May 3, 2016 at 21:10 UTC
In reply to:

Glenn Barber: Yes - and we wish they had just gotten Canon to use their sensors in the pro line like Nikon did. They seem to have the best sensor technology available but can't create a camera menu system that makes sense or figure out how to QC and repair their high end products.

Not only fantastic lenses, but Canon camera's are a joy to use - particularly compared to Sony. What I particularly like is the durability and repairability of Canon equipment and the pro service. I love my Sony for its image quality but in the areas of operational use, quality of manufacture, and repairability of the elements of their system - its a fail.

Link | Posted on May 3, 2016 at 15:27 UTC
In reply to:

Glenn Barber: Yes - and we wish they had just gotten Canon to use their sensors in the pro line like Nikon did. They seem to have the best sensor technology available but can't create a camera menu system that makes sense or figure out how to QC and repair their high end products.

Well Canon should be talking to someone else then - they certainly keep falling further behind - It doesn't mean that all the Canon sensors have to come from Sony - but just for one or two special cameras.

Link | Posted on May 3, 2016 at 01:46 UTC

Yes - and we wish they had just gotten Canon to use their sensors in the pro line like Nikon did. They seem to have the best sensor technology available but can't create a camera menu system that makes sense or figure out how to QC and repair their high end products.

Link | Posted on May 3, 2016 at 01:06 UTC as 26th comment | 10 replies
On article The Canon that can: Canon EOS 80D Review (729 comments in total)
In reply to:

GaryJP: This is optimistic.

I'm using both Canon and Sony these days. I still prefer the colour of Canon. Too many Sony users are producing horrible fudgy looking low contrast pictures that look like they are shot on expired film. I can often spot a Sony image also by the predilection for green tinged faces and horrible over-modulation of blues, particularly from LED light sources (which DPReview never seems to want to own up to). And it is an aesthetic I try hard not to let creep into my work.

If the new 5D has better dynamic range and usable 4K, my A7RII and A7SII will be for sale. I get tired of struggling with the colours.

Using Phase one or Lightroom?

Link | Posted on Apr 28, 2016 at 02:29 UTC
On article The Canon that can: Canon EOS 80D Review (729 comments in total)

Have the 70D and 7DII. Really looking forward to what the next generation of sensor can do on a 7DIII. My only complaint with the 7D2 is lifting noise on shadows and darker bird plumage. Looks like we are finally addressing that. 4K would be nice - and yes - I want to be able to turn on touch screen on the 7DIII.

Link | Posted on Apr 28, 2016 at 02:29 UTC as 146th comment | 4 replies
In reply to:

Sabud: Intresting!
Sony's exellent (optic) 55/1,8 with a so,so type 1 linear motor?
I have been spoiled with Canon L USM ring-motors since the eighties.

This depends on whether we can talk Lens Rentals or some other group into being an alternate source for repair. I understand In the past service has stated these were "unrepairable".

Link | Posted on Apr 21, 2016 at 20:13 UTC
Total: 98, showing: 1 – 20
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