August 29, 2014, 10:19:09 PM

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Messages - dcm

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EOS-M / Re: Finally a 50mm for EOS-M...
« on: August 25, 2014, 03:34:35 PM »
Confirmed for EOS-M mount.

It is not really a compact 50mm.  The EF-M version would be the same as buying the EF version and using Canon's adapter.  The lens was designed for full frame sensors and flange distances.  The weight of the EF and EF-M versions are the same and the EF-M version is 26mm longer than the EF version (basically has a built-in EF-M adapter).  Lenses sized for the M are less than half the weight and much shorter.

Lenses / Re: Samyang 50mm F1.4... Anyone interested?
« on: August 25, 2014, 01:34:50 PM »
... but sized for mirrorless cameras with native mounts.

Well, the 35 and 85 do have native mounts, but they are sized for full frame sensors and flange distances.  The weight of the EF and EF-M versions are the same and the EF-M version is 26mm longer than the EF version (basically has a built-in EF-M to EF adapter).  The EF-M version would be the same as buying the EF version and using Canon's adapter.  Lenses sized for the M are less than half the weight and much shorter.

Software & Accessories / Re: Camera bag for camping
« on: August 24, 2014, 01:29:17 PM »
dcm, that is a nice simple solution. Does it shift and rattle any while walking with it?

Nope, not in my tests.  The fit is fairly tight (the M barely fits) and the bags (like rod socks) eliminate any noise or wear from contact with the tube or other items in the tube.  The seams at the bottom of the socks and the fold from the velcro closure at the top provide padding between items.  Padding on both ends of the tube and the close fit keep it from shifting much, even if you invert the tube.  When I attach a camera/lens combo to the pack strap I will likely stuff a sock or ziplock filled with air in the tube to fill the void, even in a vertical orientation.  Both horizontal and vertical external attachments are possible with my pack, internal will be vertical.

It's still in the experiment stage.  My first hikes are a few weekends away.   I'll know better after several miles on the trail and post an update then.  It might be a reasonable option for other compact camera systems, but I don't think it will scale up to DSLRs and L series lenses.

Landscape / Re: Flowers and other Flora
« on: August 24, 2014, 01:30:29 AM »
Water lilies in the backyard pond.

Landscape / Re: Flowers and other Flora
« on: August 24, 2014, 01:09:09 AM »
Water hyacinth bloom in backyard pond at sunset. 

Software & Accessories / Re: Camera bag for camping
« on: August 23, 2014, 06:00:32 PM »
I like your approach NancyP.  I've been using Gregory Z30 and Z45 packs for my hiking/fishing/photography trips and recommend this approach to others.  The challenge has been how to carry the camera gear in/on the pack. 

I'm going to try a new approach on my weekend trips this fall.  I carried my M/22 last year and that makes a nice minimum carry, but I missed the wide/telephoto I got carrying my 6D/17-40/70-200f4/1.4x combo.  I picked up the EF-M 11-22 earlier this year and recently added the EF-M 55-200.  The M combo (1080g) is less than half the 6D combo (2455g).   My existing collection of bags and cases didn't fit these well (with a few extra batteries and CPLs).  While getting an aluminum tube made for a pair of new fly rods, I decided to try a rod tube for my camera gear.  They all slide nicely into a 3" paper mailing tube so I had a 15" long rod tube made, brass caps with an O-ring seal to handle the typical afternoon showers in the Rockies.  Weighs less than a pound (400g) while the gear inside weighs more than twice that.  My wife stitched up a few bags from some extra lens cleaning cloths to provide protection inside the tube and I added velcro tabs to close them.  This looks like the smallest and strongest solution possible with little wasted space.  Initial tests look promising, sits nicely in the pack or an outer pocket.

Canon General / Re: Lens Cleaning Techniques/Opinions
« on: August 22, 2014, 03:34:55 PM »
But in general, I see no reason to go OCD nuts on how you clean lenses.  They don't get THAT dirty anyway and I use mine is all kinds of environments.  The worst issues are usually finger smudges with dirty fingers that contain oils.
+1, some people go way overboard on this stuff.

+1, agreed.  I like B&H's rule #1.  When to clean is probably as important as how to clean.

EOS-M / Bower 300mm f6.3 mirror for EF-M mount on sale
« on: August 21, 2014, 07:39:51 PM »
Stumbled across this on amazon today.  Currently on sale for 67% off at 115.71 - the Rokinon version is still $300.  Not sure how long it will last but thought I'd pass it along.

EOS-M / Re: Something loose when shake EOS M?
« on: August 16, 2014, 11:05:28 PM »
I think that's normal given the mechanical parts inside.  My M and 6Ds both produce a little noise when shaken and work just fine.

I switched to USB thumb drives and SD cards for delivery a while back when their capacities began to exceed optical media, optical media became optional in laptops, optical media was not supported in tablets/phones, SD card slots became widespread on laptops (even the lowest end machines),  and televisions added USB ports with software to play photos/videos directly. 

It really depends on the media needs of the client.  For example, my 80+ year old mother-in-law much prefers SD media for pictures of the great grand kid.  It's the same as printing at the store kiosk, her home photo printer, or loading onto her iPad from the SD card in her P&S camera.  It also fits in her purse better than optical media  ;)

EOS Bodies / Re: SL1 as a "travel" body
« on: August 13, 2014, 01:19:46 PM »
Got to play with my cousin's SL1 on vacation (we were both traveling) a few weeks ago, with the kit zoom and her 55-250.  She travels a lot and really likes the camera, but what she missed was wide angle so I let her know about the 10-18.  Made her day - it's small, light and will fit in her existing camera bag. 

For me it's an interesting contrast to the M when mounting my selection of lenses from the 40mm pancake to the Tamron 150-600.  It's a bit like a gripped M with an OVF and makes it a bit easier to handhold my larger lenses.  I was a bit disappointed with the OVF, not nearly as nice as the 6D.  I wasn't impressed with the few tests shots I took, but  I didn't have time to fully explore the camera and settings.  I don't think it would take too much time to dial it in, but no AFMA might be an issue.  If so, I would end up using LiveView and might as well stick with the M.

Lenses / Re: Tamron 150 600 woes
« on: August 13, 2014, 12:49:04 AM »
Is that the focal length more longer, the higher percentage the lens need to AFMA?

I think its really about narrow depths of field, particularly near MFD, which faster apertures and/or longer focal lengths exacerbate. 

At 600mm on my Tamron 150-600, at 20 feet you have a DOF of 2" with f/11 and 1" with f/8 so it matters on long lenses even with small apertures.  The 135L has a similar 2" depth of field at 10 feet with f/2.  The 50L has a 2" depth of field at 5 feet with f/1.2.  These are all about twice MFD.

Most kit lenses aren't that fast or that long so they tend to be acceptable without AFMA.  But fast lenses and long telephotos can benefit from AFMA.

Lenses / Re: Tamron 150 600 woes
« on: August 12, 2014, 11:45:45 AM »
My copy arrived with significant back focus at 600 which was clearly visible in shots taken at MFD on my 6D with center focus point only. 

AFMA with FoCal resulted in -2 at 150, -10 at 600 which seems to have corrected the issue.  Sharpness was best at f/8 or f/9, there was a big drop off at f/6.3.  Other tests showed the focus consistency was above 99% at both ends, which is as good as my Canon L glass. 

It still occasionally hunts for focus in low light, low contrast situations which I expected - low being relative in this case.

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