Memory Cards

Many people (not only Canon users) use a point and shoot of sorts
(including EVF Long Zooms and Compacts) as well as a DSLR. Many use the
same brand. So it appears that Canon made a good decision to change the
new Xsi from a CF card to an SD card.

I am not sure but I do not think there is any advantage to a CF card and
the SD is less costly.

As long as there is not advantage I am wondering if Canon, on the new
rev of new DSLR version, is going to change all DSLRs to the SD format.
So far I think that would be a good idea.

Any opinions?

"measekite" <inkystinky@oem.com> wrote in message
news:rJtTj.1653$nW2.648@nlpi064.nbdc.sbc.com...
> Many people (not only Canon users) use a point and shoot of sorts
> (including EVF Long Zooms and Compacts) as well as a DSLR. Many use the
> same brand. So it appears that Canon made a good decision to change the
> new Xsi from a CF card to an SD card.
>
> I am not sure but I do not think there is any advantage to a CF card and
> the SD is less costly.
>
> As long as there is not advantage I am wondering if Canon, on the new rev
> of new DSLR version, is going to change all DSLRs to the SD format. So
> far I think that would be a good idea.
>
> Any opinions?

My older Nikon D-50 uses a SD card while my newer Nikon D-200 uses a CF
card.

Rudy Benner wrote:
> "measekite" <inkystinky@oem.com> wrote in message
> news:rJtTj.1653$nW2.648@nlpi064.nbdc.sbc.com...
>> Many people (not only Canon users) use a point and shoot of sorts
>> (including EVF Long Zooms and Compacts) as well as a DSLR. Many use
>> the same brand. So it appears that Canon made a good decision to
>> change the new Xsi from a CF card to an SD card.
>>
>> I am not sure but I do not think there is any advantage to a CF card
>> and the SD is less costly.
>>
>> As long as there is not advantage I am wondering if Canon, on the
>> new rev of new DSLR version, is going to change all DSLRs to the SD
>> format. So far I think that would be a good idea.
>>
>> Any opinions?
>
> My older Nikon D-50 uses a SD card while my newer Nikon D-200 uses a
> CF card.

There may be a feeling in some pro circles that CF is better simply
because it is physically bigger. It may also be slightly ahead in
capacity and speed. Though SD cards have, I believe, the better
connection mechanism. For the non-pros, I think that SD is clearly the
standard today. Tomorrow, who knows?

Cheers,
David

"David J Taylor"
<david-taylor@blueyonder.neither-this-bit.nor-this-bit.co.uk> wrote in
message news:dByTj.19923$yD2.10642@text.news.virginmedia.com...
> Rudy Benner wrote:
>> "measekite" <inkystinky@oem.com> wrote in message
>> news:rJtTj.1653$nW2.648@nlpi064.nbdc.sbc.com...
>>> Many people (not only Canon users) use a point and shoot of sorts
>>> (including EVF Long Zooms and Compacts) as well as a DSLR. Many use
>>> the same brand. So it appears that Canon made a good decision to
>>> change the new Xsi from a CF card to an SD card.
>>>
>>> I am not sure but I do not think there is any advantage to a CF card
>>> and the SD is less costly.
>>>
>>> As long as there is not advantage I am wondering if Canon, on the
>>> new rev of new DSLR version, is going to change all DSLRs to the SD
>>> format. So far I think that would be a good idea.
>>>
>>> Any opinions?
>>
>> My older Nikon D-50 uses a SD card while my newer Nikon D-200 uses a
>> CF card.
>
> There may be a feeling in some pro circles that CF is better simply
> because it is physically bigger. It may also be slightly ahead in
> capacity and speed. Though SD cards have, I believe, the better
> connection mechanism. For the non-pros, I think that SD is clearly the
> standard today. Tomorrow, who knows?
>
> Cheers,
> David

And doesn't the1DsMkII have both??

Pete D wrote:
> "David J Taylor"
> <david-taylor@blueyonder.neither-this-bit.nor-this-bit.co.uk> wrote in
> message news:dByTj.19923$yD2.10642@text.news.virginmedia.com...
>> Rudy Benner wrote:
>>> "measekite" <inkystinky@oem.com> wrote in message
>>> news:rJtTj.1653$nW2.648@nlpi064.nbdc.sbc.com...
>>>> Many people (not only Canon users) use a point and shoot of sorts
>>>> (including EVF Long Zooms and Compacts) as well as a DSLR. Many
>>>> use the same brand. So it appears that Canon made a good decision
>>>> to change the new Xsi from a CF card to an SD card.
>>>>
>>>> I am not sure but I do not think there is any advantage to a CF
>>>> card and the SD is less costly.
>>>>
>>>> As long as there is not advantage I am wondering if Canon, on the
>>>> new rev of new DSLR version, is going to change all DSLRs to the SD
>>>> format. So far I think that would be a good idea.
>>>>
>>>> Any opinions?
>>>
>>> My older Nikon D-50 uses a SD card while my newer Nikon D-200 uses a
>>> CF card.
>>
>> There may be a feeling in some pro circles that CF is better simply
>> because it is physically bigger. It may also be slightly ahead in
>> capacity and speed. Though SD cards have, I believe, the better
>> connection mechanism. For the non-pros, I think that SD is clearly
>> the standard today. Tomorrow, who knows?
>>
>> Cheers,
>> David
>
> And doesn't the1DsMkII have both??

Smacks of indecision, doesn't it? <G>

David

On Sun, 4 May 2008 23:54:58 -0400, "Rudy Benner"
<rudolfbenner@gmail.com> wrote:

>
>"measekite" <inkystinky@oem.com> wrote in message
>news:rJtTj.1653$nW2.648@nlpi064.nbdc.sbc.com...
>> Many people (not only Canon users) use a point and shoot of sorts
>> (including EVF Long Zooms and Compacts) as well as a DSLR. Many use the
>> same brand. So it appears that Canon made a good decision to change the
>> new Xsi from a CF card to an SD card.
>>
>> I am not sure but I do not think there is any advantage to a CF card and
>> the SD is less costly.
>>
>> As long as there is not advantage I am wondering if Canon, on the new rev
>> of new DSLR version, is going to change all DSLRs to the SD format. So
>> far I think that would be a good idea.
>>
>> Any opinions?
>
>My older Nikon D-50 uses a SD card while my newer Nikon D-200 uses a CF
>card.

My Canon S400 P&S uses CF cards and my D200 uses CF cards. Even my
Garmin 2610 GPS uses CF cards. So I'm happy.

I think, because the speed and capacity of CF is always 1 step ahead
of SD, you'll still see the upper end cameras be able to use CF. I
don't consider the Rebel Xsi an upper end camera.

Steve

Steve wrote:
[]
> My Canon S400 P&S uses CF cards and my D200 uses CF cards. Even my
> Garmin 2610 GPS uses CF cards. So I'm happy.
[]
> Steve

My Garmin GPSmap 60CSx uses microSD cards, which are tiny. Have you seen
that size? I wouldn't want to drop one in a field of grass - impossible
to find I would think! But it's nice that they fit into standard SD slots
with a simple adapter for reading and writing.

Cheers,
David

On Mon, 05 May 2008 11:59:12 GMT, "David J Taylor"
<david-taylor@blueyonder.neither-this-bit.nor-this-bit.co.uk> wrote:

>Steve wrote:
>[]
>> My Canon S400 P&S uses CF cards and my D200 uses CF cards. Even my
>> Garmin 2610 GPS uses CF cards. So I'm happy.
>[]
>> Steve
>
>My Garmin GPSmap 60CSx uses microSD cards, which are tiny. Have you seen
>that size? I wouldn't want to drop one in a field of grass - impossible
>to find I would think! But it's nice that they fit into standard SD slots
>with a simple adapter for reading and writing.

Yes, I've seen them. My Blackberry uses microSD cards also. I bought
one with the adapter but never used the adapter.

Steve

Steve wrote:
> On Mon, 05 May 2008 11:59:12 GMT, "David J Taylor"
> <david-taylor@blueyonder.neither-this-bit.nor-this-bit.co.uk> wrote:
>
>> Steve wrote:
>> []
>>> My Canon S400 P&S uses CF cards and my D200 uses CF cards. Even my
>>> Garmin 2610 GPS uses CF cards. So I'm happy.
>> []
>>> Steve
>>
>> My Garmin GPSmap 60CSx uses microSD cards, which are tiny. Have you
>> seen that size? I wouldn't want to drop one in a field of grass -
>> impossible to find I would think! But it's nice that they fit into
>> standard SD slots with a simple adapter for reading and writing.
>
> Yes, I've seen them. My Blackberry uses microSD cards also. I bought
> one with the adapter but never used the adapter.
>
> Steve

I use my adapter all the time now, Steve, although I do have one reader
which will take the cards directly. I find that you need to be careful
with the write-protect switch, which can be too easily set to read-only.
With the GPS, I download the tracks, and upload a variety of maps.
Uploading maps is much faster when writing the card directly, and the
tracks come down in convenient daily chunks (as GPX files). I haven't yet
tied this in with the camera, though.

Cheers,
David

David J Taylor wrote:
> Steve wrote:
>> On Mon, 05 May 2008 11:59:12 GMT, "David J Taylor"
>> <david-taylor@blueyonder.neither-this-bit.nor-this-bit.co.uk> wrote:
>>
>>> Steve wrote:
>>> []
>>>> My Canon S400 P&S uses CF cards and my D200 uses CF cards. Even my
>>>> Garmin 2610 GPS uses CF cards. So I'm happy.
>>> []
>>>> Steve
>>> My Garmin GPSmap 60CSx uses microSD cards, which are tiny. Have you
>>> seen that size? I wouldn't want to drop one in a field of grass -
>>> impossible to find I would think! But it's nice that they fit into
>>> standard SD slots with a simple adapter for reading and writing.
>> Yes, I've seen them. My Blackberry uses microSD cards also. I bought
>> one with the adapter but never used the adapter.
>>
>> Steve
>
> I use my adapter all the time now, Steve, although I do have one reader
> which will take the cards directly. I find that you need to be careful
> with the write-protect switch, which can be too easily set to read-only.
> With the GPS, I download the tracks, and upload a variety of maps.
> Uploading maps is much faster when writing the card directly, and the
> tracks come down in convenient daily chunks (as GPX files). I haven't yet
> tied this in with the camera, though.
>
> Cheers,
> David
>
>
It should be relatively easy to tie the tracks to pictures by the time
stamps. Looks like something Google Earth should incorporate....

> I am not sure but I do not think there is any advantage to a CF card and
> the SD is less costly.

I would expect that CF and SD cards use the same chips. Cannot tell
about electrical contacts and handling which is also a matter of
personal taste.

Actually, I prefer SD since they seem to become kind of industry
standard.

virtuPIC
--
Airspace V - international hangar flying!
tools & toys at http://www.airspace-v.com/ggadgets

On Mon, 5 May 2008 02:23:40 -0700 (PDT), virtuPIC
<WebMaster@airspace-v.com> wrote:

>> I am not sure but I do not think there is any advantage to a CF card and
>> the SD is less costly.
>
>I would expect that CF and SD cards use the same chips. Cannot tell
>about electrical contacts and handling which is also a matter of
>personal taste.
>
>Actually, I prefer SD since they seem to become kind of industry
>standard.
>
>virtuPIC

With an SD card, you don't have any pins to bend, as you do on a CF
card reader. The questions I have concerns *wear leveling,* as the
card storage areas can only be written to and read from, RELIABLY, a
limited number of times. (IIRC it is 10K reads/writes or somesuch).

So if the internal card controller (in the card itself) has Wear
Leveling, this is a reason to use that particular card. I haven't yet
found out if my SD card has this feature, but expect it would/does,
for the price I paid for it.

Nick

Nicholas wrote:

<edited for brevity>

> With an SD card, you don't have any pins to bend, as you do on a CF
> card reader. The questions I have concerns *wear leveling,* as the
> card storage areas can only be written to and read from, RELIABLY, a
> limited number of times. (IIRC it is 10K reads/writes or somesuch).

Hello, Nick:

100,000 rewrite cycles, typically.

> So if the internal card controller (in the card itself) has Wear
> Leveling, this is a reason to use that particular card. I haven't yet
> found out if my SD card has this feature, but expect it would/does,
> for the price I paid for it.
>
> Nick

Actually, all modern memory cards incorporate wear levelling.


Cordially,
John Turco <jtur@concentric.net>

John Turco wrote:
>
> Actually, all modern memory cards incorporate wear levelling.


Understood.

Question: does anyone know of a software utility that is able to read
the relevant wear information on a memory card to be able to report
back how "Worn Out" a particular card is?

Eg: 'your card has accumulated an average of 12,345 wear cycles'.


-hh

-hh wrote:
>
> John Turco wrote:
> >
> > Actually, all modern memory cards incorporate wear levelling.
>
> Understood.
>
> Question: does anyone know of a software utility that is able to read
> the relevant wear information on a memory card to be able to report
> back how "Worn Out" a particular card is?
>
> Eg: 'your card has accumulated an average of 12,345 wear cycles'.
>
> -hh


Hello, HH:

Here's a couple of hits, on this topic:

Wikipedia - Wear levelling
<http://en.wikipedia.org/wiki/Wear_levelling>

BiTMICRO Networks/Press Resourses: Flash SSDs - Inferior Technology or
Closet Superstar?
<http://www.bitmicro.com/press_resources_flash_ssd.php>

By the way, when clicking on one of the links (entitled, "TrueFFS(R)
Wear-Leveling Mechanism"), at the Wikipedia page, it took me to SanDisk
<http://www.sandisk.com>, instead of the listed URL.

This leads me to suspect that the flash manufacturers don't want such
information to become freely available, to the general public!


Cordially,
John Turco <jtur@concentric.net>