PENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACRO

PENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACRO
PENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACROPENTAX SF7 TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACRO
รหัสสินค้า SF7-4344694
หมวดหมู่ PENTAX SF7
ราคา 2,900.00 บาท
บาร์โค้ด 4344694
หมายเลขเครื่อง 4344694
สภาพ สินค้ามือสอง
เกรด ดีมาก (95-99 %)
ลงสินค้า 23 ธ.ค. 2562
อัพเดทล่าสุด 14 มิ.ย. 2565
ขออภัย สินค้าหมด
บัตรประชาชน
บุ๊คแบ๊งค์
คุ้มครองโดย LnwPay
Tags : Pentax, SF7, TAMRON, AF, ASPHERICAL, LD(IF)28-300MM, .F3.5-6.3, MACRO

รายละเอียดสินค้า

PENTAX SF7
TAMRON AF ASPHERICAL LD(IF)28-300MM.F3.5-6.3MACRO
SN.4344694
Pentax SF7บางพื้นที่ใช้ชื่อเป็น SF10 ครับ เป็นกล้องฟิลม์ SLR ขนาด 35มม.ที่ผลิตโดย Pentax ในปี 1988 โดยมีวัตถุประสงค์เพื่อที่จะใช้กับ Pentax F หรือเลนส์เม้าส์ KAFแบบออโต้โฟกัสครับ เป็นกล้องที่ใช้งานได้ง่ายครับ เหมาะกับมือใหม่เพิ่งเริ่มหัดถ่ายครับ
ข้อมูลทางเทคนิค
-Year introduced:1988
-Mount:KAF
-DX ISO range:25 - 5000
-Exposure modes:P, Av, Tv, M, B
-Exposure memory lock:Yes
-Shutter speeds (auto):30 - 1/2000s
-Shutter speeds (manual):1 - 1/2000s
-Self timer:Yes
-Winder:Built-in 2 fps
-Built-in flash:Yes, GN 12
-TTL flash:Yes
-Sync speed:1/100s
-Autofocus:Yes (1 point)
-Autofocus sensitivity:2 - 18 EV
-Viewfinder:0.81x, 92%
-Viewfinder type:Pentaprism
-Image size:24 x 36 mm
-Size (W x H x D):157 x 99 x 63.5 mm
-Weight:630 g
-Battery:2CR5*1ก้อน
รายละเอียดสินค้า
+บอดี้สภาพสวยมาก ริ้วรอยและรอยถลอกมีเล็กๆน้อยๆเป็นบางจุด ไม่มีหนักครับ ดูรูปประกอบการพิจารณาครับ
+ช่องมองใส กรอบและรายละเอียดด้านในยังดูชัดเจนครับ
+ชัตเตอร์เสียงนุ่มรื่นหูครับ สปีดชัตเตอร์ทั้งระบบเมนวนและออโต้โฟกัสยังทำงานตรงทุกสปีดครับ
+เชฟไทม์ทำงานปกติครับ
+ห้องฟิลม์สะอาดเหมือนใหม่ครับ
+บอดี้เลนส์มีรอยถลอกตามรูปน่ะครับ แต่เลนส์ใส ไม่มีรา ฝ้า ซูมเข้าออกปกติไม่มีติดขัดครับ
+กล้องใช้งานปกติเต็มระบบครับ
ราคา 2900.-รวมส่ง ems
มือถือ 090-323-6480
Line id:filmcameracm
www.filmcamerachiangmaishop.com

วิธีการชำระเงิน

ชำระเงินผ่านธนาคาร

บมจ. ธนาคารกสิกรไทย สาขาบิ๊กชี หางดง2 ออมทรัพย์
  • ไปหน้าแจ้งชำระเงิน

CATEGORY

DIGITAL CAMERA [15]
PANASONIC DIGITAL CAMERA [2]
CASIO DIGITAL CAMERA [1]
CASIO EXILIM EX-Z1 [1]
CANON DIGITAL CAMERA [1]
CANON POWERSHOT A570IS AIAF [1]
SONY DIGITAL [3]
NIKON DIGITAL CAMERA [2]
PENTAX DIGITAL CAMERA [2]
PENTAX Q [2]
LEICA CAMERA [2]
OLYMPUS DIGITAL CAMERA [2]
OLYMPUS DIGITAL COMPACT [1]
OLYMPUS DIGITAL MIRRORLESS [1]
FILM CAMERA [2662]
AGFA CAMERA [5]
AGFA SOLINA PRONTO [1]
AGFA OPTIMA IA [1]
AGFA VENTURA-69 BELLOWS [1]
AGFA SILETTE VARIO [1]
AIRES CAMERA [2]
AIRES 35 [1]
ARGUS CAMERA [8]
ARGUS C3 [3]
ARGUS C3 MATCHMETIC [4]
ARGUS C-44 [1]
BEIRETTE ELECTRONIC CAMERA [2]
CANON CAMERA [421]
CANON IIIA [1]
CANON II D [1]
CANON L2 [1]
CANON L3 [3]
CANON P [2]
CANON 7 [6]
CANONFLEX RP [2]
CANON CANOFLEX RM [4]
CANON PELLIX [1]
CANON F-1 [1]
CANON FP [1]
CANON FX [3]
CANON FT QL [10]
CANON FTb QL [35]
CANON EX AUTO QL [10]
CANON EX EE QL [4]
CANON A-1 [6]
CANON AE-1 [19]
CANON AE1 PROGRAM [12]
CANON AV1 [8]
CANON AL-1 [3]
CANON DEMI [5]
CANON DEMI EE17 [3]
CANON CANONET S [2]
CANON CANONET QL [20]
CANON CANONET QL-19 CANON LENS SE 45MM.F1.9 [18]
CANON CANONET QL19E [2]
NEW CANON CANONET QL19 (GEN II) [1]
CANON CANONET QL19 G III CANON LENS 45MM.F1.9 [3]
CANON CANONET QL17 CANON LENS SE 45MM.F1.7 [14]
NEW CANON CANONET QL17 CANON LENS 40MM.F1.7 [15]
NEW CANON CANONET 17 G-III QL [5]
CANON CANONET QL25 CANON LENS SE 45MM.F2.5 [2]
NEW CANON CANONET 28 CANON LENS 40MM.F2.8 [18]
CANON CANODATE E [13]
CANON DATEMATIC [9]
CANON CANONET JUNIOR [2]
CANON A35 DATELUX [7]
CANON T50 [14]
CANON T70 [6]
CANON T80 [1]
CANON T90 [1]
CANON EOS5 [2]
CANON EOS55 [9]
CANON EOS7 [5]
CANON EOS 10 [1]
CANON EOS 10QD [4]
CANON EOS 620 [2]
CANON EOS-630 [3]
CANON EOS 650 [9]
CANON EOS 850 [2]
CANON EOS 750QD [1]
CANON EOS 1000QD [2]
CANON EOS 100QD [2]
CANON EOS 1000S [1]
CANON EOS 700QD [2]
CANON EOS 750 [1]
CANON EOS 600(BODY) [1]
CANON EOS KISS [4]
CANON EOS KISS PANORAMA [4]
CANON AF35M [11]
CANON AF35ML [9]
CANON AUTOBOYJET [4]
CANON AUTOBOY ZOOM SUPER [2]
CANON AUTOBOY A PANORAMA [1]
CANON AUTOBOY TELE QUARTZ DATE [3]
CANON AUTOBOY TELE6 DATE [1]
CANON AUTOBOY 3 [2]
CANON AUTOBOY2 [21]
CANON AUTOBOY LUNA 105 [4]
CANON PRIMA SUPER 28 N [1]
CANON PRIMA SUPER 105 [1]
CANON PRIMA ZOOM SHOT AI AF CANON ZOOM LENS 38-60MM.F4.5-6.7 [1]
CANON SURE SHOT SLEEK [1]
CANON MC QUARTZ DATE [1]
CANON IXY D5(APS) [1]
CANON DEMI S [1]
CECTO PHOT CAMERA [2]
CMEHA SMENA CAMERA [4]
CMEHA SMENA 8M [4]
CONTAX CAMERA [9]
CONTAX 139 QUARTZ [1]
CONTAX 137 MD QUARTZ [4]
CONTAX 167MT [2]
CONTAX IIIA [1]
COSINA CAMERA [2]
COSINA CT1 EX [2]
EXAKTA CAMERA [74]
EXA JHAGEE DRESDEN [4]
EXA 500 [1]
EXAKTA EXA-1A [14]
EXA 1b [12]
EXA 1C [13]
EXAKTAR VX1000 [2]
EXAKTA VAREX IIb [4]
ELBAFLEX VX1000 [1]
EXAKTA VX JHAGEE DRESDEN [7]
EXAKTA VX II A JHAGEE DRESDEN [2]
EXA-IIb [2]
EXAKTA ZOOM 770 AF [1]
EXAKTA RTL 1000 [2]
EXAKTA VX500 [4]
EXAKTA VAREX VX JHAGEE DRESDEN [4]
EXA II [1]
FED CAMERA [3]
FED 5 [3]
FUJIFILM CAMERA [85]
FUJICA AX-1 X-FUJINON 55MM.F2.2 [1]
FUJICA GE [5]
FUJICA DRIVE [1]
HANIMAX CAMERA [1]
KIEV CAMERA [5]
KONICA CAMERA [215]
KODAK CAMERA [13]
KOWA CAMERA [2]
KYOCERA CAMERA [4]
LOMO CAMERA [2]
MAMIYA CAMERA [15]
MARANDA CAMERA [2]
MINOLTA CAMERA [264]
NIKON CAMERA [156]
OLYMPUS CAMERA [357]
PENTAX CAMERA [194]
PETRI CAMERA [8]
PENTACON CAMERA [3]
PRAKTICA CAMERA [17]
POLAROID CAMERA [7]
RICOH CAMERA [30]
ROLLEI CAMERA [10]
REVUE CAMERA [3]
SAMSUNG CAMERA [1]
SEARS CAMERA [0]
TOPCON CAMERA [5]
VOIGTLANDER CAMERA [17]
VIVITAR CAMERA [0]
YASHICA CAMERA [613]
ZIESS IKON CAMERA [8]
ZORKI CAMERA [3]
ZENIT CAMERA [4]
MEDIUM FORMAT CAMERA [13]
TLR CAMERA [37]
FOLDING CAMERA [2]
8MM.PROJECTOR [4]
OTHER CAMERA [2]
LUXON CAMERA [1]
TOY CAMERA [6]
PHENIX CAMERA [1]
ALTIX-N CAMERA [2]
กล้องฟิล์มเสีย(ขายตามสภาพ) [11]
BOX CAMERA [1]
BRAUN CAMERA [1]
FUJI CARDIA CUTE DATE [1]
FUJIFILM SUPER 145AZ FUJINON ZOOM 38-145MM. [1]
MOVIE CAMERA [4]
CINEMAX-8 [1]
SANKYO 8-Z [1]
ELMO CINEMA [1]
CANON CINEMA [1]
LENS MF/AF [2343]
ACCURA DIAMATIC LENS [1]
AUTO SEARS LENS [5]
ARGUS LENS [5]
AUTO RIKENON LENS [3]
AUTO CHINON LENS [8]
AUTO REVUENON LENS [7]
AUTO KENTAR LENS [2]
A.SCHACHT ULM R TRAVENON LENS [1]
BESTON LENS [1]
CANON LENS [204]
CARL ZEISS JENA LENS [76]
CCTV LENS [7]
CIMKO LENS [1]
CHINAR LENS [4]
COSINA LENS [11]
CONTINENTAL LENS [1]
COSMICAR LENS [5]
COMPOUND LENS [1]
COMPUTAR LENS [2]
C MOUNT LENS [1]
EXAKTA LENS [1]
FUJINON LENS [30]
FIVE STARS LENS [1]
GEMINI MC AUTO LENS [2]
HANIMAR AUTO [2]
HANIMEX AUTO [3]
HELIOS LENS [43]
HOYA LENS [2]
INDUSTAR LENS [20]
ISCO-GOTTINGEN [3]
JUPITER [3]
JCPeny LENS [3]
KALIMAR LENS [3]
KONICA LENS [71]
KIRON LENS [3]
KOMURANON LENS [3]
KOMURA LENS [18]
KODAK LENS [23]
MAMIYA/SEKOR LENS [28]
MEYER-OPTIK LENS [19]
MIR LENS [4]
MINOLTA LENS [267]
MODIFILED LENS [75]
NIKON LENS [213]
OLYMPUS LENS [101]
OSAWA MC [4]
PENTAX LENS [204]
PENTACON LENS [70]
PETRI LENS [26]
PROJECTION LENS [248]
QUANTARAY LENS [3]
REVUENON LENS [1]
RICOH LENS [23]
REXATAR AUTOMATIC [1]
RODENSTOCK LENS [0]
SAKAR LENS [2]
SIGMA LENS [52]
SCHNEIDER-KREUZNACH [12]
SIRIUS LENS [3]
SUN ZOOM LENS [6]
SONY LENS [6]
SOLIGOR LENS [13]
SAMIGON LENS [1]
STAR-D LENS [1]
SEARS LENS [1]
SEAGULL LENS [2]
TELESOR LENS [2]
MEOPTA LENS [13]
TEFNON LENS [6]
TAMRON LENS [49]
TOKINA LENS [39]
TOPCOR LENS [20]
TOPMAN MC AUTO LENS [2]
TOU/FIVE STAR LENS [1]
TLR LENS [1]
VIVITAR LENS [17]
VOIGTLANDER LENS [7]
RODENSTOCK LENS [2]
YASHICA LENS [119]
ZENITAR LENS [5]
ZENZA BRONICA LENS [1]
OTHER LENS [7]
GEMINI MC AUTO ZOOM/C-MACRO 28-80MM.F3.5-4.8 [1]
BESLAR LENS [1]
LEITZ LENS [8]
KOWA LENS [10]
ELGEET POCHESTER LENS [1]
WALLENSAK LENS [12]
KERN PAILLARD LENS [4]
KINOTEL LENS [1]
LOMO LENS [5]
SANKYO LENS [3]
ROLLEI LENS [4]
BIOKOR-S LENS [2]
MIRANDA LENS [3]
KENKO LENS [2]
KONIX LENS [1]
PORST LENS [2]
NORITSU LENS [1]
AGFA LENS [3]
3 BEACH VARI LENS [1]
KALEINAR LENS [1]
CCTV LENS [1]
ACALL LENS [1]
SOM PARIS [1]
ANIMAR BALCOTE BAUSCH&LOMB OTP CO.USA [1]
OKAYA OPTIC LENS [1]
TARONAR LENS(TARON) [2]
MIRANDA LENS [1]
AIRES LENS [2]
ANGENIEUX LENS [1]
SUPER CARENAR LENS [1]
ANTIQ LENS [2]
LENS ADAPTER [56]
FOR CANON EOS [5]
FOR NIKON [3]
FOR OLYMPUS/PANASONIC M4/3 MOUNT [13]
FOR SONY NEX(E-MOUNT) [13]
FOR SONY A MOUNT [1]
FOR FUJIFILM FX [5]
FOR CANON EOS M [4]
FOR M42 MOUNT [1]
FOR PENTAX K MOUNT [2]
FOR LEICA M [1]
FOR PETRI LENS [2]
FOR KONICA F [2]
FOR KOWA 66 [1]
FOR M39 MOUNT [0]
FOR MIRANDA LENS [1]
ADAPTER M42-NIKON Z MOUNT [1]
FOR FUJIFILM GFX MOUNT [1]
HELICOID LENS [3]
HELICOID M42 TO M42(25-55) [1]
HELICOID M42 TO M42(17-31) [1]
HELICOID M42-M42(25-55) [1]
2X TELE-CONVERTER LENS [47]
M42 MOUNT 2X TELECONVERTER LENS [10]
A MOUNT 2X TELE-CONVERTER [2]
FD MOUNT 2X TELECONVERSION LENS [3]
CY MOUNT 2X TELE CONVERTER LENS [4]
MD MOUNT MT AUTO TELEPLUS 2X LENS [4]
TAMRON SP BBAR MC TELECONVERTER 2X [1]
DKL MOUNT 2X AUTO TELE CONVERTER [1]
TOPCON MOUNT 2X TELE-CONVERTER [1]
FOCAL MC 2X CONVERTER [1]
SOLIGOR AUTO TELE CONVERTER 2X FOR PENTAX K MOUNT [1]
EXAKTA MOUNT [1]
NIKON F MOUNT 2X TELECONVERTER [7]
PK MOUNT 2X TELECONVERTER LENS [2]
2X KFT TELEPLUS MC6 LENS [1]
OM MOUNT TELECONVERTER LENS [1]
2X HBF TELEPLUS MC6 FOR Hasselblad [1]
3X TELECONVERTER LENS [3]
KENKO NT AUTO TELEPLUS 3X [1]
APS AUTO TELEPLUS 3X [1]
FLASH [56]
NIKON FLASH [10]
MINOLTA FLASH [11]
CANON FLASH [10]
NATIONAL FLASH [6]
SUNPAK FLASH [2]
PENTAX FLASH [0]
OLYMPUS FLASH [5]
METZ FLASH [1]
FLASH>TOSHIBA [1]
SOLIGOR FLASH [1]
CONTAX FLASH [1]
OTHER FLASH [2]
POWER WINDER [3]
FOR YASHICA [1]
FOR NIKON [0]
FOR MINOLTA [0]
FOR CANON [1]
FOR PENTAX [1]
REAR CAP [4]
FOR M42 MOUNT [1]
REAR CAP FUJIFILM FX MOUNT [1]
REAR+CAMERA BODY LENS [2]
CAP LENS [22]
ASAHI PENTAX CAP LENS [4]
MINOLTA CAP LENS [2]
CANON CAP LENS [1]
OLYMPUS CAP LENS [3]
VIVITAR CAP LENS [1]
SUN CAP LENS [1]
SOLIGOR CAP LENS [1]
KOMURA CAP LENS [1]
CAP LENS CENTER SNAP 49MM. [1]
CAP LENS CENTER SNAP 58MM [1]
CAP LENS CENTER SNAP 55MM. [2]
CAP LENS CENTER SNAP 40.5MM [1]
CAP LENS CENTER SNAP 52MM. [1]
CAP LENS CENTER SNAP 46MM [1]
CAP LENS FOR KERN [1]
BATTERY [0]
CR2 [0]
CR 123A [0]
2CR5 [0]
4LR44 [0]
LR44 [0]
CAMERA CHARGER [1]
FOR SONY [0]
FOR NIKON [1]
HAND GRIP [5]
OLYMPUS POWER BOUNCE GRIP2 [1]
MAMIYA HAND GRIP [2]
TRIPODS [3]
TELE-WIDE-MACRO VIDEO ULTAR [1]
VIDEO ULTAR MACRO WIDE 0.6X [1]
WIDE CONVERSION LENS [4]
PANASONIC WIDE CONVERSION LENS 49 MM [1]
DIGITAL HIGH DEFINITION 0.42X SUPER WIDE LENS [1]
SONY WIDE CONVERSION LENS X0.7 VCL-0752 [1]
VIDEO TELE CONVERTER LENS [12]
KENKO VIDEO TELE CONVERTER KUT-300HI 3.0X [1]
SPECTRALSTAR VIDEO TELEPHOTO CONVERTER [1]
NATIONAL TELE CONVERSION LENS [1]
PANASONIC TELE-CONVERSION LENS [1]
KENKO DIGITAL TELE 1.83x LD-183T [1]
OLYMPUS IS/L LENS C-180 H.Q.CONVERTER 1.7x [2]
VIDEO WIDE ANGLE LENS 0.5* [1]
RAYNOX DCR-1850PRO PRO-TELEPHOTO CONVERSION LENS 1.85X [1]
CANON TELE-CONVERTER 1.4X 46 [1]
CANON C-8 TELE CONVERTER 1.6X(48MM.) [1]
FILM [2]
FUJI COLOR [1]
KODAK COLOR [1]
NEW MY HEART [0]
FILTER LENS [11]
KODAK FILTER [1]
FILTER LENS 55MM. [1]
FILTER LENS 52MM. [1]
FILTER LENS 58MM. [2]
CARL ZEISS [1]
CLOSE UP FILTER [3]
KONIX OPTICAL FILTER [2]
อุปกรณ์เสริม [12]
P ADAPTER MAMIYA RB [1]
PLATE [3]
FOR YASHICA ELECTRO 35 [3]
BLACK POLAROID [1]
FUJI INSTANT FILM BACK HOLDER [2]
FOR KIEV [2]
HOT SHOE [0]
CASE CAMERA [7]
CASE YASHICA [1]
CASE FOR KIEV [1]
FOR OLYMPUS [1]
FOR PENTACON/PARKTICA [1]
FOR ZENIT [1]
FOR CANON [2]
อะหลั่ยกล้องฟิลม์ [1]
CANON [0]
NIKON [0]
MINOLTA [0]
YASHICA [0]
KONICA [0]
TOPCON [1]
ADAPTER BATTERY [3]
ADAPTER BATTERY 4LR44 FOR PX32 [1]
ADAPTER BATTERY LR44 TO PX640 [1]
ADAPTER BATTERY LR44 TO PX625 [1]
MACRO EXTENSION TUBE [6]
AGFA MACRO EXTENSION TUBE [1]
MINOLTA MACRO EXTENSION TUBE FOR MINOLTA SR [1]
NIKON EXTENSION TUBE MACRO PK-13 [2]
MAMIYA RB67 EXTENSION TUBE [1]
CANON EXTENSION TUBE [1]
HOOD LENS [22]
HOOD LENS 55MM. [4]
MINOLTA HOOD LENS [4]
TAMRON HOOD LENS [1]
HOOD LENS 52MM. [1]
HOOD LENS 39MM. [1]
OLYMPUS HOOD LENS [3]
TAKUMAR HOOD LENS [1]
ZENZA HOOD LENS [1]
NIKON HOOD LENS [2]
HOOD LENS FOR KERN PAILLARD SWITAR AR 25MM.F1.4 [1]
LIGTH METER [16]
SEKONIC LIGTH METER [8]
CANON LIGTH METER [1]
WESTON MASTER II EXPOSURE METER [1]
ZEISS IKON LIGTH METER [1]
GOSSEN LIGTH METER [3]
TOPCON-METER [1]
กล้องส่องทางไกล [4]
กล้องส่องทางไกล LIGHT MUSE 8 X 30 Field 7.5'' [1]
ฝาปิดแบตเตอรี่ [2]
YASHICA BATTERY COVER [1]
ฝาปิดถ่าน YASHICA ELECTRO 35(ORIGINAL) [1]
OTHER [1]
CLOSEUP CARD [1]
DIY VINTANG CAMERA LAMP [1]
STRAP CAMERA [1]
OLYMPUS STRAP [1]
DATA BACK [2]
VIEWFIDER [5]
VIEWFIDER FOR EXA [1]
VIEWFIDER FOR CANON [1]
VIEWFIDER FOR MAMIYA [1]
VIEWFIDER FOR PENTAX [1]
VIEWFIDER FOR MINOLTA [1]
CASE LENS [1]
CASE FOR MINOLTA LENS [1]
CABLE RELEASE II [1]
ASAHI PENTAX CABLE RELEASE II [1]
FLASH COUPLER [1]
FOR NIKON [1]
FOCUSING SCREEN [1]
FOCUSING SCREEN CANON EF-S [1]
FILMCAMERA 110 [1]
MINOLTA 110 [1]
ดูหมวดหมู่ทั้งหมด

MEMBER

สถิติร้านค้า

หน้าที่เข้าชม2,040,114 ครั้ง
ผู้ชมทั้งหมด984,036 ครั้ง
เปิดร้าน15 ก.พ. 2557
ร้านค้าอัพเดท7 ก.ย. 2568

0903236480

  • ค้นหา
*ใส่ เบอร์มือถือ หรือ email ที่ใช้ในการสั่งซื้อ
พูดคุย-สอบถาม