Manual Focus Nikon Glass
/forum/topic/929565/3361

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pburke
Registered: Oct 08, 2010
Total Posts: 1642
Country: United States

rattymouse wrote:


Here is some background for you:

http://en.wikipedia.org/wiki/Data_Rot

For someone responsible for important data, I'm more than a bit surprised that you do not know about this extremely important phenomena. It does indeed exist.

Can checksum's be used to protect our digital archives? If yes, how to get started in such a manner?



If data changes due to dormancy and slow changes in the charge on a disk platter or SSD, a smart storage system will notice that. There's even a checksum link right from your wiki article to get you started. A decent storage controller does a lot more than that. Thing is, all this is expensive compared to the cheap yet dumb external drive, which does have its place in smaller systems, but won't do any of the constant monitoring to keep data fresh.

Bottom line, you have to use the right hardware. It begins on the low end with proper server RAID controllers (LSI, 3Ware, Areca, search about their RAID 6 offerings), and it ends with Enterprise Storage Systems like EMC, which are massively redundant and geographically multi-hosted, and run on hardware only large institutions can afford. Short of Yellowstone's caldera blowing up and covering the Midwest with 12 feet of ashes, we probably won't lose the data I am responsible for, but then we'll have different problems .





rattymouse
Registered: Feb 04, 2006
Total Posts: 3607
Country: China

That's just it. I have in my case 32,000 images sitting on a hard drive that is 4 years old. I have NO IDEA what condition those images are in. The drive is fully operational and shows no signs of failure. Yet 20 images of mine are known to be corrupt. 20 VERY important images of my son in the hospital after his birth. Who knows how many more images have reached total failure? I dont review all 32,000 images every year.

If the situation is this bad today, what will it be like 10 years from now? 20 years? What about 40 years from now when i'm ready to hand everything down to my kids? Will these images even be viewable?

I lost those 20 images even having a back up plan in place. My back up system overwrote the good data with the bad data. I backed up bad data!!

I need to learn this checksum system since from what you are telling me, this would have caught and prevented this problem.

Every time I bring up data rot to anyone, they treat it as a non issue. It seems that no one cares that digital files are not archival. I am not willing to accept that.



deang001
Registered: Apr 23, 2011
Total Posts: 1499
Country: China

Reagan wrote:
Greetings and Salutations my old cyber friends
Several months with no camera but 2 MF lens still to fondle
I recently purchased a D300 with a Katz eye focus screen and well I washed the grease off my hands and put it to my eye

Black is still my favorite car color all with 50 1.8 The katzeye works great and seems to be in sync with the focus confirm light but only half were were in good focus

Gotta love the "Bow Tie"







Reagan

Very nice, Raegan. Nice to see you dropping in !!


deang001
Registered: Apr 23, 2011
Total Posts: 1499
Country: China

paxnobiscum wrote:
Thanks for all your friendly comments re my humble shots. I find it very hard to remember your real names - do you still keep a list of user-names and first names, Leighton? I would appreciate a copy.

The Nikkor 35/1.4 is one of my favorite lenses. Here is a snapshot portrait of a good friend of mine, a self-made ornithologist living in the village. @f/1.4.


_DSC2709-Thinking out of the box by Count Basil, on Flickr


Beautifully shot !! Well done.



deang001
Registered: Apr 23, 2011
Total Posts: 1499
Country: China

CGrindahl wrote:

Nice to know SOMEONE hasn't forgotten my name...

Keep up the good work Leighton... what we want is MORE people buying MORE MF Nikkor lenses...

I wish I had some photos to share but those I took today are still in the camera... but, alas i do have a few downloaded from last week. Here is one shot of my neighbor's roses taken with the 135 f/2.8 Q.C. AI'd. Looks so real you think you might reach out and touch it... mmm, good!


Happy shooting everyone!


Wonderful light, Curtis ... hopefully we will see more soon



MDoc9523
Registered: Aug 13, 2006
Total Posts: 4602
Country: United States

Steve the photo from Yosemite is very very nice. That place is on my bucket list
Mahai so glad to hear that you are up and around. We have missed you.
Petur great work with the 20mm I would love to have one for my D600 and these photos are a great example of what it can do!!!
Georg I love the selective focus in this photo
Reagan so glad to see you with a camera in your hands once again. Great shots!
Very cool photo Jay that car should be restored to it's former glory - for sure!!
Chin you photo certainly never disappoint and this one is right on!



davidthejr
Registered: Mar 13, 2013
Total Posts: 36
Country: United States

We had a small "festival" type thing called Williams Station Day in town this past weekend, so i thought i would share a few shots I took!

All with a Nikon D90 and 50mm 1.8 Series E.
C&C always welcome!


20131026_0005 by davidthejr, on Flickr


20131026_0115 by davidthejr, on Flickr


20131026_0062 by davidthejr, on Flickr



MDoc9523
Registered: Aug 13, 2006
Total Posts: 4602
Country: United States

Welcome David!!! great shots using the 50mm E 1.8



georgms
Registered: Jan 08, 2009
Total Posts: 3044
Country: Germany

MDoc9523 wrote:
Welcome David!!! great shots using the 50mm E 1.8


+1! Very nice bokeh-play. Love the expression of your (?) boy on the last picture.



georgms
Registered: Jan 08, 2009
Total Posts: 3044
Country: Germany

Some shots from a short walk through the woods:


Herbst von georgsfoto auf Flickr
Ai 55/1.2 wide open, D700, don't like the twig at the right side


in the woods von georgsfoto auf Flickr
Ai 55/1.2 wide open too


in the woods von georgsfoto auf Flickr
I can see a face here ;-) 55/1.2 at f/1.2


Unbenannt von georgsfoto auf Flickr
Live-View to the rescue ;-)

and finally a weird one, this time the PC 85/2.8D was lens of choice:

Abend an der Ostsee von georgsfoto auf Flickr
a quiet evening at the Baltic Sea



davidthejr
Registered: Mar 13, 2013
Total Posts: 36
Country: United States

georgms wrote:
MDoc9523 wrote:
Welcome David!!! great shots using the 50mm E 1.8


+1! Very nice bokeh-play. Love the expression of your (?) boy on the last picture.


Haha! No, i don't have any kids. Both of the kids are from friends of mine, the first is a girl, and the second is a boy.



davidthejr
Registered: Mar 13, 2013
Total Posts: 36
Country: United States

georgms wrote:
Some shots from a short walk through the woods:


Unbenannt von georgsfoto auf Flickr
Live-View to the rescue ;-)



Wow ... love the bokeh!



MDoc9523
Registered: Aug 13, 2006
Total Posts: 4602
Country: United States

Great stuff Georg. Love the bokeh on that 55mm. It doesn't get any better than this!



georgms
Registered: Jan 08, 2009
Total Posts: 3044
Country: Germany

Thanks, David, and sorry for my mistake ;-) It's nice to see a young photographer on board here…

Thank you, Ray, it could be done much better with more time. But the ol' 55/1.2 is still a favorite MF-Nikkor when it comes to bokeh-stuff ;-)



kwoodard
Registered: Aug 04, 2012
Total Posts: 2393
Country: United States

One of my last shots with my D7000. I think the normal version was posted, but I converted this for a Halloween inspired image contest.

Series E 50mm f/1.8 @ f/4


_DSC1076-BW by Kevin.Woodard, on Flickr



leighton w
Registered: Nov 12, 2010
Total Posts: 8593
Country: United States

davidthejr wrote:
We had a small "festival" type thing called Williams Station Day in town this past weekend, so i thought i would share a few shots I took!

All with a Nikon D90 and 50mm 1.8 Series E.
C&C always welcome!


20131026_0005 by davidthejr, on Flickr



I like the bokeh and composition of this one. Good to see you again.



davidthejr
Registered: Mar 13, 2013
Total Posts: 36
Country: United States

georgms wrote:
Thanks, David, and sorry for my mistake ;-) It's nice to see a young photographer on board here…


Haha! Not a problem! And I'm glad I get to be a part of this community of much wiser photographers!



leighton w
Registered: Nov 12, 2010
Total Posts: 8593
Country: United States

Georg, nice set and really different from you. I like the "face" image the best.



davidthejr
Registered: Mar 13, 2013
Total Posts: 36
Country: United States

leighton w wrote:
davidthejr wrote:
We had a small "festival" type thing called Williams Station Day in town this past weekend, so i thought i would share a few shots I took!

All with a Nikon D90 and 50mm 1.8 Series E.
C&C always welcome!


20131026_0005 by davidthejr, on Flickr



I like the bokeh and composition of this one. Good to see you again.


Thanks!



paxnobiscum
Registered: Jun 14, 2009
Total Posts: 36
Country: Iceland

Tanks for the friendly comments on my pictures - and all the great shots on the thread. Here are two shots from my tiny village - one icy winter scene and one from a sunny evening.

Exile on Main Street II (Nikon d700 + Nikkor 28/2 AIS)


20120109-_DSC2035-Exile on Main Street 2 by Count Basil, on Flickr

Just before midnight (Nikon D700 + Nikkor 50/1.2)


20120426-_DSC3152 Testing Nikkor 50mm 1.2 AI-S (@f/5.6) by Count Basil, on Flickr



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