Mmemme mmụta injinia: Otu esi enyocha faịlụ NEF n'okpuru microscope

Mgbe imepere onyonyo `.NEF` oge niile n'ime ihe nlere arụnyere, sistemu a na-ahụ nkụnye eji isi mee EXIF ​​ọkọlọtọ. (Ụdị TIFF): ụbọchị, ọsọ nkpuchi, oghere na ụdị igwefoto. Mana ebee ka ezoro ezo data gbasara mmepe nke igwe?

A na-ezobe data oge arụ ọrụ n'ime akpa ọnụọgụ abụọ mechiri emechi **MakerNote**.

Ebee ka mkpado kilomita dị n'anụ ahụ?

Ọ bụrụ na anyị emepee faịlụ `.NEF` na hexadecimal HEX editọ (dịka ọmụmaatụ, HxD), anyị ga-ahụ nkụnye eji isi mee nke nwere mbinye aka. 'Nikon' x00 x02':

1. Mkpado 0x00A7 (ọnụọgụ ihe mkpuchi):Nke a bụ ọnụọgụ 4-byte n'ụdị Little-Endian ma ọ bụ Big-Endian. Nke a bụ ebe EXPEED processor na-abanye n'usoro nọmba nke etiti ọ bụla.
2. Mkpado 0x001d (nọmba akara):Nọmba nsoro nke bọọdụ sistemu na akpa ezoro ezo nke siri ike.
3. Kpido 0x00a8 (ozi ọkụ):Ntụle ọnụọgụ ọkụ nke flash ohu arụnyere n'ime ma ọ bụ mpụga.

Kedu ihe kpatara ọrụ ịntanetị dị mfe ji daa na faịlụ NEF?

N'ihi na dabere na ọgbọ nke EXPEED processor (EXPEED 1 na D90 na EXPEED 7 na Z9), Nikon gbanwere. nkwụsị nke ubi bit na nhazi MakerNote.

Ederede gbagọrọ agbagọ dị mfe na-achọ nkwụghachi na adreesị edobere wee gụọ bytes mkpofu, na-ewepụta “0” n'ihi ya. ma ọ bụ nọmba "4,294,967,295". Ọrụ webụ anyị gbadoro ụkwụ na nzacha omenala nke na-atụgharị n'ụzọ ziri ezi nhazi byte ọgbọ ọ bụla nke Nikon!

Kpido tebụl adreesị byte na MakerNote Nikon

NJ mkpado (Hex)	Aha mkpado	Kedu ihe echekwara na bytes?
0x00A7	ShutterCount	Mpempe mgbochi ọkụ nke ọma (4 bytes)
0x001D	Nọmba usoro n'usoro	Ụlọ ọrụ Oghere Usoro nọmba nke anuoriri
0x00A8	Ozi Flash	Ọnụọgụ ọkụ na-akpalite ọkụ