Loss of Mg.
I shoot with a Nikon D 7200 and prior to processing my pictures my Mg. normally read 28.9 or thereabouts. This morning when shooting in normal conditions the Mg.read between 17.9-19.2. Does anyone have an reason for this?
Thank you in advance for your reply.
What is Mg? Magnesium, Milligram, Morris Garages?
MadMikeOne
Loc: So. NJ Shore - a bit west of Atlantic City
theehmann wrote:
I shoot with a Nikon D 7200 and prior to processing my pictures my Mg. normally read 28.9 or thereabouts. This morning when shooting in normal conditions the Mg.read between 17.9-19.2. Does anyone have an reason for this?
Thank you in advance for your reply.
Do you mean "mb", by any chance?
Let's start by clarifying terms and use standard terminology. Your image files have two measurable dimensions: 1) bytes, typically expressed as megabytes or MB. As digital images, the files also have pixels, expressed as megapixels or MP. The bytes are the size of the file as stored on disk. The pixels are the resolution of the file as measured by data that can be seen / presented on a pixel-based viewing device.
When we check the file sizes of different image formats and quality settings for your D7200 as expressed on page 380 of your user manual, we see the 14-bit lossless compressed RAW / NEF format will yield images about 28MB. Changing the camera to 12-Bit compressed RAW / NEF format will yield images about 22MB.
Based on the file sizes you seem to be noticing in megabytes / MB, check the image quality settings and confirm if this explains the change.
theehmann wrote:
I shoot with a Nikon D 7200 and prior to processing my pictures my Mg. normally read 28.9 or thereabouts. This morning when shooting in normal conditions the Mg.read between 17.9-19.2. Does anyone have an reason for this?
Thank you in advance for your reply.
Mg? MG is an auto mobile.
Did you mean MB or Mb? If you accidentally changed your resolution or mode of Raw or JPG file it would act like that. Going from typically 29 to 17 MBs. There are several ways you may have done that. I do not know your camera. Seems Nikon does have compressed Raw formats. But you likely reduced your file. Check the physical sizes with Ps or Lr or whatever PP software you use. It will be noted in you exif data.
lamiaceae wrote:
Mg? MG is an auto mobile.
Mg is the correct spelling for Mega Gram (capital M lower case g and not mg which is miligram) which is 2204.62262 lbs.
lamiaceae wrote:
Mg? MG is an auto mobile.
Did you mean MB or Mb? If you accidentally changed your resolution or mode of Raw or JPG file it would act like that. Going from typically 29 to 17 MBs. There are several ways you may have done that. I do not know your camera. Seems Nikon does have compressed Raw formats. But you likely reduced your file. Check the physical sizes with Ps or Lr or whatever PP software you use. It will be noted in you exif data.
The computer generally lists the file size in MB (megabyte) rather than Mb (megabit) which is generally used for data transmission speed.
Any way many people call an MB a Meg so Mg stands for Meg.
DirtFarmer
Loc: Escaped from the NYC area, back to MA
Global Mg shortage caused by COVID-19
CHG_CANON wrote:
Let's start by clarifying terms and use standard terminology. Your image files have two measurable dimensions: 1) bytes, typically expressed as megabytes or MB. As digital images, the files also have pixels, expressed as megapixels or MP. The bytes are the size of the file as stored on disk. The pixels are the resolution of the file as measured by data that can be seen / presented on a pixel-based viewing device.
When we check the file sizes of different image formats and quality settings for your D7200 as expressed on page 380 of your user manual, we see the 14-bit lossless compressed RAW / NEF format will yield images about 28MB. Changing the camera to 12-Bit compressed RAW / NEF format will yield images about 22MB.
Based on the file sizes you seem to be noticing in megabytes / MB, check the image quality settings and confirm if this explains the change.
Let's start by clarifying terms and use standard t... (
show quote)
That is probably about right. I took a different tac to a similar explanation. I would figure a Raw file from a 24MP camera to be 28MB. That is about the same as my Pentax Raw from my K-3. He could have bumped a function button to switch from Raw to large Jpeg. I have had that happen and found it very annoying so I re-assign the fx to toggel VR / SR on and off.
CHG_CANON wrote:
Let's start by clarifying terms and use standard terminology. Your image files have two measurable dimensions: 1) bytes, typically expressed as megabytes or MB. As digital images, the files also have pixels, expressed as megapixels or MP. The bytes are the size of the file as stored on disk. The pixels are the resolution of the file as measured by data that can be seen / presented on a pixel-based viewing device.
When we check the file sizes of different image formats and quality settings for your D7200 as expressed on page 380 of your user manual, we see the 14-bit lossless compressed RAW / NEF format will yield images about 28MB. Changing the camera to 12-Bit compressed RAW / NEF format will yield images about 22MB.
Based on the file sizes you seem to be noticing in megabytes / MB, check the image quality settings and confirm if this explains the change.
Let's start by clarifying terms and use standard t... (
show quote)
Sorry everyone for my error in the post. My image quality is Raw, and I have not changed that setting from before.
BebuLamar wrote:
The computer generally lists the file size in MB (megabyte) rather than Mb (megabit) which is generally used for data transmission speed.
I guess that is what I get for reading material from both photo and computer engineers. OK, in the future I'll try to not mix Mb with MB. Yes, I have actually known Byte from Bit before I ever owned a computer myself. But back then the short hand was less commonly exclusively used.
theehmann wrote:
Sorry everyone for my error in the post. My image quality is Raw, and I have not changed that setting from before.
It seems to be a mystery. Really do check your exif data for a 28MB vs 17MB file. Perhaps one of the engineers on here can help you.
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