September 18, 2014, 02:01:28 PM

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Messages - Mt Spokane Photography

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1


The Canon 15/2.8 is really good, and listed at just over $700 on ths Canon USA website. It will be interesting to find out how the Samyang compares in price and quality. It is the least used lens in my bag, but it's irreplaceable when I want to take photos in really confined spaces.


The Canon 15mm f/2.8 fisheye was discontinued in June of 2011, over three years ago.  I doubt if any new ones are available.  Canon may list it, but they no longer make them or sell them.

2
PowerShot / Re: Canon PowerShot G7 X First Test
« on: Today at 12:52:50 PM »
Canon is really pushing the camera, with the shift away from P&S to higher models, they need to get it right.

We'll have to wait and see what production models are like, I am always leery of prototype images.

http://cpn.canon-europe.com/content/education/technical/the_powershot_g7_x_story.do

3
Site Information / Re: Noisy obtrusive ads
« on: Today at 12:19:58 PM »
Audio/video ads are being posted by Google that are activated simply by moving unintentionally the cursor over them without clicking. This activation happens when scrolling and the cursor slides over the ad. They are horribly noisy. Admin please get rid of them.

I will talk to Google about it, I'm not sure if I can opt out of those. Thanks for your patience.

There seems to be complaints around the internet.  Facebook autorun videos started it when smartphone users discovered they were eating their minutes. 

4
EOS Bodies / Re: 7d-II Pushed images...
« on: Today at 12:10:55 AM »
A push test isn't going to tell you anything unless the original images were DR limited to start with. Not everything is DR limited, and it's quite possible to fit a lot of scenes within 8-10 stops of DR. For a push test to have any meaning, you need to be exposing scenes with 11-14 stops of DR. THEN you'll really see how far the sensor can go. Oh...you gotta push RAW as well...pushing a JPEG is basically pointless.

+1.
 
Pushing jpeg images is worthless and tells us nothing, except the expertise level of the person doing the pushing.

5
Third Party Manufacturers / Re: Most exciting thing at Photokina?
« on: September 17, 2014, 11:45:32 PM »
DPR says the G7 X has generated the most excitement, at least for a P&S.  For Canon DSLR users, certainly the 7D MK II is at the top of the list.
 
I have to admit that for those who can handle a small body, the G7 X is going to be interesting, and a big step up from the GXX series.
 
I've pre-ordered a SX60 HS, I had the SX50 HS and returned it after trouble framing subjects.  Supposedly, the new model has a feature to help with framing.  I'll give it a try.  The image quality of the SX50 HS was very good as long as light was bright.  I expect the same of the SX60 HS

6
EOS Bodies / Re: LP-E6N in 5DMK III
« on: September 17, 2014, 11:38:22 PM »
We need someone who has used the new battery for 1D X (LP-E4N) in a 1DsIII, 1DIII or 1DIV and can tell if it had a longer life compared to the LP-E4.

There is a earlier post about the new battery, the LP-E4N has a higher capacity as well as circuitry changes.  The LP-E6N will work in all cameras that used the LP-E6, the LP-E6 will no longer be made now that a safer battery is available.

7
I'd also recommend having it adjusted.  Its likely that some minor adjustments to the internal elements will put it in top condition. 

8
Software & Accessories / Re: Capture One Pro 8 - Announced
« on: September 17, 2014, 07:39:34 PM »
I've tried the Capture One trials many times over the years.  I do not like the side car files it creates, it gets very difficult for me to manage photos. 
 
No one piece of software is perfect, and Capture one is liked by many users - but not all.
 
Try it, learn to use it, and compare.  If you are doing 1000 photos a week, see how rapidly you can process photos with the different popular photo editing programs.  Some work very well, but cannot handle large volumes well.  If you do a few each week, your choice may be entirely different from mine.

9
EOS Bodies / Re: A New EOS Pro Body With 46mp Next Month? [CR1]
« on: September 17, 2014, 06:56:40 PM »
Its interesting that Fred Miranda posted that he trusts the OP more than the Rumor sites.  The poster is a long time FM member.

10
EOS Bodies / Re: AE-1 Styled DSLR from Canon?
« on: September 17, 2014, 03:37:15 PM »
I think Nikon tried a retro camera, it fell flat.

11
Lenses / Re: Lens 'resolving power' vs sensors.
« on: September 17, 2014, 03:35:55 PM »
Hello experts.
I keep hearing that current Canon lenses are not 'good enough' for newer/better sensors. I would really appreciate a lesson on how this works.
Thx...

Who did you hear it from, and how did they take their measurements of the lens MTF?  Most of the online lens testers, including DXO test a lens on a camera, and in every case I've seen, the camera sensor has been the limiting factor.
 
Roger Cicala at Lens Rentals has the capability to test a lens by itself (No camera attached), and has posted  a couple of actual lens MTF values for some conditions.  A lens like the 24-70 f/2.8 L MK II or the 70-200mm f/2.8 MK II is supurb.  Easily capable of handling high MP sensors.  The Canon lenses may be slightly better than the Nikon equivalent, but they are both fantastic lenses.
 
Here is some more reading on the subject.  Jrista throws out a lot of terms that you might not understand, this will help understand what they mean, as well as the other factors that are involved in grading a lens.
 
http://www.cambridgeincolour.com/tutorials/lens-quality-mtf-resolution.htm

12
PowerShot / Re: Is G17 still coming?
« on: September 17, 2014, 03:06:42 PM »
The G7 is likely the replacement.  Same size but its going to have much better  and low light performance with its big sensor.
 
I'd think that few would buy a G17 rather than the G7 X
 
http://www.dpreview.com/articles/8036481925/video-preview-of-the-canon-powershot-g7-x

13
Speedlites, Printers, Accessories / Re: CF Cards Vs SD Cards
« on: September 17, 2014, 02:59:45 PM »
Yup...enough with the fear mongering. 

I've been shooting CF cards for 15 years and not once have I bent pins or messed up the mechanical interface in any way.  I've had exactly one card go bad in all that time (of hundreds I've owned), and that was when one fell out of my card wallet and got run over by a fire truck.
+1 Seriously.  Unless you jam the card in the wrong way or something, it doesn't happen.  I've been using CF cards for 15+ years as well with no issues.  I've never had a card failure, either and they are tough as hell and have been through many wash cycles :D in my pants.  I've only had 1 SD card failure, but find the size a bad thing in terms of them being easier to lose. 

If the CF cards are faster in the 7DII, I'd go for them as you're going to need all the speed you can get with that camera!

I sold my D30 many years back to a lady whose camera had died and was in for repair.  I included a small CF card.  A couple days later, she put in her old card that she had been using in the failed camera, and it killed the 6 month old 30D.  I gave her a copy of my receipt from the local dealer, and they sent it in to Canon for her at no charge.  The card was retired >:(   I think it was one of the Hitachi Micro Drive cards, and shorted the power out coming from the camera.
 
The CF card is definitely due for a replacement.   Not by SD cards, I hope.

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Speedlites, Printers, Accessories / Re: CF Cards Vs SD Cards
« on: September 17, 2014, 12:03:45 PM »
Got any links to support this, or is this all just seat-of-the-pants common sense reasoning?
 
I covered many things in your quote.  All are factual.
 
As for the way SD cards work, you can look it up, there are plenty of links.  That's why there are two modes of formatting for SD cards in your camera, a regular format and a low level format.
 
I thought most users knew that formatting a card with a regular format does not actually erase the photos, it merely marks the FAT table to indicate that the files can be overwritten. 
 
The thing that many do not know is that when the flash card decides to over write a file, it must first erase a much larger memory block, and this takes time.  The Flash controller may also fragment a file due to the wear leveling, so a file is spread to different places on the card.  This operation for a SD card does not happen until you go to write a file.  It can slow a SD card down so much that Video recording stops.
 
There are many different factors in play.  Start with Wikipedia, the section on Real World Performance.

 
Also, be aware.  Card speeds are rated by saving a huge file to a completely erased card, there is no erasing of used memory blocks, and no fragmentation.  As you'd expect, real world performance is slower than card rated speeds.
 
CF Cards handle erasing differently with a process akin to that used for SSD's in your computer.

I've had two cameras with bent CF pins.  One was a used Minolta DSLR that I had bought (Just before Sony bought them).  I was able to straighten the bent pin out, and it was fine.

The other was a used Canon P&S that I bought for a dollar.  The charger, battery, and CF card were worth more than that.

Many SD card advocates are not aware that you must do a low level format on a previously filled SD card in order to get rated write speeds.  If you just do a regular quick in camera format, the write speed slows to a crawl.  If you do a low level format every time, then the card gets lots of write cycles, since a low level format writes a 0 to every memory cell.

With a AD card, its best to buy a big one, and do a low level format whenever you have saved enough files to reach the card capacity.

For example, you have a 64GB card.

You do 4 photo sessions using 16 GB and doing a regular format(does not erase the cells or data).  The card software tries to equalize card usage, so it tends to not over write cells with data in them until it has to.  Thus, by the 4th 16GB session, the entire card has been written to, and now data must be erased to save more.  This is very slow, so your right speed drops.  Time to do a low level format to get the speed you are paying for.

15
Speedlites, Printers, Accessories / Re: CF Cards Vs SD Cards
« on: September 17, 2014, 10:35:15 AM »
I've had two cameras with bent CF pins.  One was a used Minolta DSLR that I had bought (Just before Sony bought them).  I was able to straighten the bent pin out, and it was fine.

The other was a used Canon P&S that I bought for a dollar.  The charger, battery, and CF card were worth more than that.

Many SD card advocates are not aware that you must do a low level format on a previously filled SD card in order to get rated write speeds.  If you just do a regular quick in camera format, the write speed slows to a crawl.  If you do a low level format every time, then the card gets lots of write cycles, since a low level format writes a 0 to every memory cell.

With a SD card, its best to buy a big one, and do a low level format whenever you have saved enough files to reach the card capacity.

For example, you have a 64GB card.

You do 4 photo sessions using 16 GB and doing a regular format(does not erase the cells or data).  The card software tries to equalize card usage, so it tends to not over write cells with data in them until it has to.  Thus, by the 4th 16GB session, the entire card has been written to, and now data must be erased to save more.  This is very slow, so your right speed drops.  Time to do a low level format to get the speed you are paying for.

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