pentax k100d e dimensione foto

[greg73]

Salve a tutti ho da poco acquistato la macchina in questione ed ho notato che anche impostando la max risoluzione 6mpx e qualita' in formato jpg le dimensioni delle foto risultano essere comprese tra 1,5 e 2,5 mbyte, quasi un mega meno di una bridge di pari risoluzione in questo caso fuji s6500fd.Il fatto mi e' sembrato molto strano anche paragonandole con foto fatte con altre macchine e reflex che ho avuto modo di provare in passato in cui le foto pesavano di pu'.in cosa sbaglio?ringrazio quanti possiedono o hanno posseduto la stessa macchina per dritte sul suo miglior funzionamento.

[andy_g]

Niente!
Purtroppo questi sono i JPEG sfornati dalla macchina (che ho ed uso tuttora).
Comunque un 30x40 ce lo fai tranquillo.
Altrimenti c'è il RAW.

[greg73]

Grazie, ultima cortesia senza aprire un nuovo post,avresti da consigliarmi un obiettivo adatto sia per i ritratti interno esterno quindi probabilmente a focale fissa sia macro 1:1 senza spendere una follia,magari da cercare sulla baia ?

[fabrizio.binello]

[andy_g]

Di macro purtroppo non so nulla, con la K100D ottimi obiettivi da ritratto sono il FA 50 F/1,4, reperibile ancora nuovo, e il F 50 F/1,7. Altrimenti, senza messa a fuoco automatica, tutti i 50 delle serie M ed A F/1,4, F/1,7 e F/2 sono ottimi. Sull'usato Pentax bada sempre che ci sia la sigla SMC, fa la differenza.

[greg73]

Ragazzi ci capisco sempre meno ho preso un pentax smc 100:300 fa e le foto alla massima focale sono solo 500kb sempre con impostata massima risoluzione e max dettaglio jpg xche'?

[il signor mario]

Veramente l'obiettivo non c'entra nulla con la risoluzione e/o il peso in Mb della foto. Sicuro di aver impostato bene la fotocamera?

[greg73]

Si le uniche impostazioni sulla macchina sono formato jpg o raw (jpg nel mio caso) e tre impostazioni come qualita' foto indicato con stelline (tre max) poi solo impostazioni come nitidezza,etc.etc.Essendo la mia prima reflex e usata poi,non riuscivo a capire il xche' le foto risultassero un po' piccole come "peso" pur essendo 3008*2000 a 6 mp,e utilizzando l'obiettivo standard siamo intorno ai 2,5 mega a foto,mentre col 100:300 enormemente piu' piccole tra 500 e 900 kb.Quello che non ho ben capito del nuovo obiettivo e' se la ghiera finale deve restare su infinito o meno mi spiego:fotografando la luna in af la luna nel mirino sembra + grande di quella che poi risulta essere nella foto,mentre in mf tenendo la ghiera su infinito la luna e' enorme ma non risulta a fuoco.Mi scuso forse sara' una banalita' ma non ci arrivo...............

[greg73]

Come ghiera intendo quella di messa a fuoco del pentax smc 100:300 vorrei inserire una foto per farvi vedere quello che intendo inserisco i dati di photome(spero si possa)
[PhotoME]
Versione PhotoME: 0.79R17 (Build 856)

[Riepilogo]
Nome File: C\IMGP5197.JPG
Tipo File: JPEG
Dimensione File: 338,9 KB
Data di creazione: 10/10/2011 19.41
Ultima modifica: 10/10/2011 19.41
Costruttore: PENTAX Corporation (http://www.pentaxitalia.com)
Modello: PENTAX K100D
Obiettivo: smc PENTAX-FA 100-300mm F4.7-5.8
Software: K100D Ver 1.00
Dimensione: 3008 x 2000 px (6 MP, 3:2)
Focale: 300 mm (equiv. 450 mm)
Diaframma: F5.6
Tempo d'esposizione: 1/500"
Sensibilitá ISO: 200/24°
Programma: Manual
Modo Esposizione: Center-weighted average
Bilanciamento Bianchi: Auto (not detected)
Modo messa a fuoco: AF-S
Stabilizzatore Immagine: stabilized
Riduzione Rumore: Off
Flash: Flash did not fire, compulsory flash mode

[Immagine]
Manufacturer: PENTAX Corporation
Image input equipment model: PENTAX K100D
Orientation of image: 0° (top/left)
Image resolution in width direction: 72 dpi
Image resolution in height direction: 72 dpi
Unit of X and Y resolution: inch
Software: K100D Ver 1.00
File change date and time: 2011-10-10 19:41:58
Y and C positioning: Co-Sited
Exif IFD Pointer: 0x0000025A
PRINT Image Matching: 0x000000F8

[Info-Miniatura]
Compression scheme: JPEG (old-style)
Image resolution in width direction: 72 dpi
Image resolution in height direction: 72 dpi
Unit of X and Y resolution: inch
Offset to JPEG SOI: 0x0000CC90
Bytes of JPEG data: 1202 bytes

[Modello]
Exposure time: 1/500"
F number: F5.6
Exposure program: Manual
ISO speed rating: 200/24°
Exif version: Version 2.21
Date and time of original data generation: 2011-10-10 19:41:58
Date and time of digital data generation: 2011-10-10 19:41:58
Meaning of each component: YCbCr
Exposure bias: ±0 EV
Metering mode: Center-weighted average
Flash: Flash did not fire, compulsory flash mode
Lens focal length: 300 mm
Manufacturer notes: 0x00000410
Supported Flashpix version: Version 1.0
Color space: sRGB
Image width: 3008 px
Image height: 2000 px
Interoperability IFD Pointer: 0x0000CC12
Sensing method: One-chip color area sensor
File source: Digital Camera
Scene type: A directly photographed image
Custom image processing: Normal process
Exposure mode: Manual exposure
White balance: Auto
Focal length in 35 mm film: 450 mm
Scene capture type: Standard
Contrast: Normal
Saturation: Normal
Sharpness: Hard
Subject distance range: Distant view

[Notes del fabbricante]
Pentax Model Group: Group 1 (DSLR series & Various Optio models)
Preview Image Size: 640 x 480
Preview Image Length: 7796 bytes
Preview Image Start: 0x000008CC
Pentax Model: K100D
Date: 2011-10-10
Time: 19:41:58
Quality: Best
Pentax Image Size: 3008 x 2000
Flash Mode: Off
Focus Mode: AF-S
AF Point Selected: Center
Exposure Time: 1/500"
F Number: F5.6
ISO: 200/24°
Exposure Compensation: ±0
Metering Mode: Center-weighted average
Auto Bracketing: 0 EV
White Balance: Auto
White Balance Mode: Auto (not detected)
Focal Length: 300 mm
Saturation: Normal
Contrast: Normal
Sharpness: Hard
World Time Location: Hometown
Hometown City: Rome
Destination City: Rome
Hometown DST: No
Destination DST: No
DSP Firmware Version: Ver 1.00.00.04
CPU Firmware Version: Ver 1.00.00.04
??? (002B): 9216
??? (002C): 0
Effective LV: 13.3 LV
Image Processing: Unprocessed
Picture Mode: Manual; 1/2 EV steps
Drive Mode: Single-frame; No Timer; Shutter Button; Single Exposure
??? (0035): 12012, 7987
??? (0036): 128
Color Space: sRGB
??? (003A): 18022
??? (003D): 8192
Preview Image Borders: top = 26, bottom = 26, left = 0, right = 0
Lens ID: 4 + 35
Pentax Lens Type: FA, FAJ, DFA or DA
Lens Name(s) of the ID: smc PENTAX-FA 100-300mm F4.7-5.8
Image Processing Count: 0
Camera Temperature: 19 °C
AE Lock: Off
Noise Reduction: Off
Flash Exposure Compensation: ±0
Image Tone: Bright
SR Result: stabilized
Shake Reduction (Setup): On
Shutter Release Half Press Time: 4.15 sec
SR Focal length: 300 mm
Shutter Count: 5452
Black Point: [127, 127, 127, 127]
White Point: [12480, 8192, 8192, 8352]
??? (0202): 0, 0, 0, 0
Picture Mode 2: Manual
Program Line: Normal
EV Steps: 1/2 EV steps
E-Dial In Program: P Shift
Aperture Ring Use: Prohibited
Flash Options: Normal
Metering Mode (2): Center-weighted average
AF Point Mode: Select
Focus Mode 2: AF-S
AF Point Selected 2: 32
ISO Floor: 200/24°
Drive Mode 2: Single-frame
Exposure Bracket Step Size: 0.5
Bracket Shot Number: n/a
White Balance Set: Auto
Multiple Exposure Set: Off
??? (0205): 0
??? (0205): 0
??? (0205): 252
AE Exposure Time: 1/482.7"
AE Aperture: Not set
AE ISO: 100/21°
AE Xv: ±0 EV
AEB Xv: ±0 EV
AE Min. Exposure Time: Not available
AE Program Mode: M, P or TAv
AE Extra?: 0
??? (0206): 0
AE Max. Aperture: F5.7
AE Max. Aperture (2): F6.2
AE Min. Aperture: F38
AE Metering Mode: Center-weighted average
??? (0206): 100
Lens Name: smc PENTAX-FA 100-300mm F4.7-5.8
Pentax Lens Type: FA, FAJ, DFA or DA
Lens ID: 4 + 35
Additional Flags: Not set
Auto Aperture: On
Nominal Aperture Range: F4.5 - F32
Lens F-Stops: 5.5
Lens Kind / Version (LC0): 2 / 8
Lens Data (LC1): 148
Distance Code Data (LC2): Range: 12; Step: 7 (Code: 99; Very Far/Infinite)
K-Value (LC3): 164
Near Distance Abberation Correction Data (LC4): 101
Light Color Aberration Correction Data (LC5): 18
Open Aberration Data (LC6): 111
AF Minimum Actuation Condition Data (LC7): 97
Focal Length (LC8): 300 mm
Nominal AVmin / AVmax (LC9): F5.6 / F38
mv' nv' Data (LC10): 96
AVC 1/EXP Data (LC11): 40
mv1 Avminsif Data (LC12): 2
AVmin Data (LC13): F6.1
UNT_12 UNT_6 Data (LC14): 157
Incorporated Flash Suited END Data (LC15): 251
??? (0207): 255
??? (0207): 255
??? (0207): 255
??? (0207): 35
??? (0207): 1
??? (0207): 117
??? (0207): 15
??? (0207): 117
??? (0207): 0
??? (0207): 188
??? (0207): 8
??? (0207): 0
??? (0207): 0
??? (0207): 0
??? (0207): 0
??? (0207): 0
??? (0207): 0, 0, 0, 0, 0, 0, 0, 0
Flash Status: Off
Internal Flash Mode: Off, Normal
External Flash Mode: Off
Internal Flash Strength: 0
TTL D/A A-ch Up: 1
TTL D/A A-ch Down: 0
TTL D/A B-ch Up: 1
TTL D/A B-ch Down: 0
??? (0208): 48
??? (0208): 48
??? (0208): 42
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
??? (0208): 0
External Flash Guide Number: Not set
??? (0208): 0x0
External Flash Exposure Comp: Not set (Off or Auto Modes)
External Flash Bounce: Not set
AE Metering Segment 1: 12 LV (center)
AE Metering Segment 2: 11.9 LV (center edge)
AE Metering Segment 3: 10.8 LV (upper, mid-right)
AE Metering Segment 4: 10.1 LV (upper, mid-left)
AE Metering Segment 5: 5.4 LV (upper, right)
AE Metering Segment 6: 4.6 LV (upper, left)
AE Metering Segment 7: 7.1 LV (mid-right)
AE Metering Segment 8: 6.4 LV (mid-left)
AE Metering Segment 9: 4.3 LV (right)
AE Metering Segment 10: 3.8 LV (left)
AE Metering Segment 11: 5.9 LV (lower, mid-right)
AE Metering Segment 12: 5.6 LV (lower, mid-left)
AE Metering Segment 13: 4.3 LV (lower, right)
AE Metering Segment 14: 3.9 LV (lower, left)
AE Metering Segment 15: 4.9 LV (top)
AE Metering Segment 16: 4.4 LV (bottom)
Flash Metering Segments: Not set
Slave Flash Metering Segments: not set
WB RGGB Levels Daylight: [12258, 8192, 8192, 8192]
WB RGGB Levels Shade: [14766, 8192, 8192, 6244]
WB RGGB Levels Cloudy: [13249, 8192, 8192, 7354]
WB RGGB Levels Tungsten: [6958, 8192, 8192, 17054]
WB RGGB Levels Fluorescent D: [14361, 8192, 8192, 8318]
WB RGGB Levels Fluorescent N: [11873, 8192, 8192, 9302]
WB RGGB Levels Fluorescent W: [10579, 8192, 8192, 11293]
WB RGGB Levels Flash: [12743, 8192, 8192, 7689]
Pentax Model: K100D
Manufacture Date?: 2007-01-12
Camera has been serviced?: Serviced bit not set (Value: 2?)
Production ID?: 2
Internal Serial Number?: 6531214
Power Source: Body Battery
Battery States: Body Battery: 4; Grip Battery: 0
Battery A/D Body No Load: 162
Battery A/D Body Load: 152
Battery A/D Grip No Load: 0
Battery A/D Grip Load: 0
AF Points Unknown 1?: Center
AF Points Unknown 2?: Center, Bit 13?, Bit 14?, Bit 15?
AF Predictor: ±0
AF Defocus: 0
AF Integration Time: 0 ms
??? (021F): 0x1F (31)
??? (021F): 0x1F (31)
AF Points Unknown 3?: Bottom + Center
AF Points In Focus: Center (vertical)
??? (03FF): 500, 500, 0, 5, 6, 6, 0, 1, 2, 3, 3, 4, 4, 5, 0

[Interoperability]
Interoperability Identification: R98: DCF basic file (sRGB)
Interoperability Version: Version 1.0
[/img]

[il signor mario]

[il signor mario]

PS ho visto che sei di Roma, se non sei molto lontano da Prati ci si può incontrare e vedere insieme di che si tratta.

[LABRADOR]

I parametri riportati nelle pagine 111-112 del mf sono impostati correttamente?

dati da un mio file: sensore da 10Mp


[PhotoME]
Versione PhotoME: 0.79R17 (Build 856)

[Riepilogo]
Nome File: E:\\IMGP9214.JPG
Tipo File: JPEG
Dimensione File: 4.008,5 KB
Data di creazione: 06/02/2011 11.19
Ultima modifica: 06/02/2011 10.19
Costruttore: PENTAX (http://www.pentaxitalia.com)
Modello: PENTAX K200D
Obiettivo: Unknown FA, FAJ, DFA or DA lens (Id: 4 48)
Software: K200D Ver 1.01
Dimensione: 3872 x 2592 px (10 MP, 3:2)
Focale: 26 mm (equiv. 39 mm)
Diaframma: F8
Tempo d'esposizione: 1/320"
Sensibilitá ISO: 200/24°
Programma: Manual
Modo Esposizione: Spot
Bilanciamento Bianchi: User-Selected
Modo messa a fuoco: AF-S
Stabilizzatore Immagine: stabilized
Riduzione Rumore: Off
Flash: Flash did not fire, compulsory flash mode

[Immagine]
Manufacturer: PENTAX
Image input equipment model: PENTAX K200D
Orientation of image: 0° (top/left)
Image resolution in width direction: 72 dpi
Image resolution in height direction: 72 dpi
Unit of X and Y resolution: inch
Software: K200D Ver 1.01
File change date and time: 2011-02-06 11:19:30
Y and C positioning: Co-Sited
Exif IFD Pointer: 0x00000256
PRINT Image Matching: 0x000000F6

[Info-Miniatura]
Compression scheme: JPEG (old-style)
Image resolution in width direction: 72 dpi
Image resolution in height direction: 72 dpi
Unit of X and Y resolution: inch
Offset to JPEG SOI: 0x0000D488
Bytes of JPEG data: 7545 bytes

[Modello]
Exposure time: 1/320"
F number: F8
Exposure program: Manual
ISO speed rating: 200/24°
Exif version: Version 2.21
Date and time of original data generation: 2011-02-06 11:19:30
Date and time of digital data generation: 2011-02-06 11:19:30
Meaning of each component: YCbCr
Exposure bias: ±0 EV
Metering mode: Spot
Flash: Flash did not fire, compulsory flash mode
Lens focal length: 26 mm
Manufacturer notes: 0x0000040C
Supported Flashpix version: Version 1.0
Color space: sRGB
Image width: 3872 px
Image height: 2592 px
Interoperability IFD Pointer: 0x0000D40C
Sensing method: One-chip color area sensor
File source: Digital Camera
Scene type: A directly photographed image
Custom image processing: Normal process
Exposure mode: Manual exposure
White balance: Manual
Focal length in 35 mm film: 39 mm
Scene capture type: Standard
Contrast: Hard
Saturation: Low saturation
Sharpness: Normal
Subject distance range: Distant view
[Notes del fabbricante]
Pentax Version: 41.2.0
Pentax Model Group: Group 1 (DSLR series & Various Optio models)
Preview Image Size: 640 x 480
Preview Image Length: 27965 bytes