sony alpha a7r iv
-
kafaları karıştıran bir model.
kim ne derse desin, sony canon'un tabutunu çiviliyor.
birkaç güne ön sipariş almaya başlayacak. bu eylül ayında da elinizde olabilir.
fiyatı çok abartı olmasa da kur farkını hesap edenler için üzücü olabilir.
sony's full-frame mirrorless ?7r ıv reveals ever more overwhelming photographic vision, with expressive prowess once expected only in medium-format cameras and overpowering high speed in a compact body. see how its enhanced rigidity and connectivity raise your productivity.
shipping september 12, 2019.
$3,498.00
pre-orders begın july 18, 2019 at 10am edt -
ön satış fiyatıyla sony'nin bundan sonra nereye gideceğiyle alakalı sorular oluşturmuş bir model. her neslinin öyle veya böyle hala satışta olması da enteresan.
https://www.sony.co.uk/…able-lens-cameras/ilce-7rm4
ilce-7rm4a koduyla teknik güncelleme almış fakat adı aynı kalmış.
arka lcd ekran 1.44 milyon noktadan 2,359,296 noktaya yükseltilmiş, sony logosu kaldırılmış.
usb 3.2 desteğiyle birlikte pil kullanımında bir parça iyileştirme yapılmış.
https://www.sony.com/…eable-lens-cameras/ilce-7rm4a
https://www.dpreview.com/…eviews/sony-a7r-iv-review
https://www.imaging-resource.com/…/sony-a7r-iva.htm
https://www.cameralabs.com/…pha-a7r-mark-iv-review/
https://www.lensrentals.com/…ew-of-the-sony-a7r-iv/
https://www.photographyblog.com/…iew/preview_images
https://briansmith.com/…v-camera-review-60mp-beast/
https://fstoppers.com/…pressions-sony-a7r-iv-392459
https://www.ephotozine.com/…r-iv-full-review--33793
teknik özellikleri:
--- spoiler ---
lens
lens compatıbılıty
sony e-mount lenses
lens mount
e-mount
ımage sensor
aspect ratıo
3:2
number of pıxels (effectıve)
approx. 61.0 megapixels
number of pıxels (total)
approx. 62.5 megapixels
sensor type
35mm full frame (35.7×23.8mm), exmor r cmos sensor
antı-dust system
charge protection coating on optical filter and image sensor shift mechanism
recording (still images)
recordıng format
jpeg (dcf ver. 2.0, exif ver.2.31, mpf baseline compliant), raw (sony arw 2.3 format)
ımage sıze (pıxels) [3:2]
35mm full frame l: 9504 x 6336 (60m), m: 6240 x 4160 (26m), s: 4752 x 3168 (15m) aps-c l: 6240 x 4160 (26m), m: 4752 x 3168 (15m), s: 3120 x 2080 (6.5m)
ımage sıze (pıxels) [4:3]
35mm full frame l: 8448 x 6336 (54m), m: 5552 x 4160 (23m), s: 4224 x 3168 (13m) aps-c l: 5552 x 4160 (23m), m: 4224 x 3168 (13m), s: 2768 x 2080 (5.8m)
ımage sıze (pıxels) [16:9]
35mm full frame l: 9504 x 5344 (51m), m: 6240 x 3512 (22m), s: 4752 x 2672 (13m) aps-c l: 6240 x 3512 (22m), m: 4752 x 2672 (13m), s: 3120 x 1752 (5.5m)
ımage sıze (pıxels) [1:1]
35mm full frame l: 6336 x 6336 (40m), m: 4160 x 4160 (17m), s: 3168 x 3168 (10m) aps-c l: 4160 x 4160 (17m), m: 3168 x 3168 (10m), s: 2080 x 2080 (4.3m)
ımage sıze (pıxels) [sweep panorama]
-
ımage qualıty modes
raw,raw & jpeg (extra fine, fine, standard), jpeg (extra fine, fine, standard)
pıcture effect
posterization (color), posterization (b/w), pop color, retro photo, partial color (r/g/b/y), high contrast monochrome, toy camera(normal/cool/warm/green/magenta), soft high-key
creatıve style
standard, vivid, neutral, clear, deep, light, portrait, landscape, sunset, night scene, autumn leaves, black & white, sepia,style box(1-6), (contrast (-3 to +3 steps), saturation (-3 to +3 steps), sharpness (-5 to +5 steps))
pıcture profıle
yes (off / pp1-pp10) parameters: black level, gamma (movie, still, cine1-4, ıtu709, ıtu709 [800%], s-log2, s-log3, hlg, hlg1-3), black gamma, knee, color mode, saturation, color phase, color depth, detail, copy, reset
dynamıc range functıons
off, dynamic range optimizer (auto/level (1-5))
colour space
srgb standard (with sycc gamut) and adobe rgb standard compatible with trılumınos color
14bıt raw
yes
uncompressed raw
yes
recording (movie)
recordıng format
xavc s, avchd format ver. 2.0 compliant
vıdeo compressıon
xavc s: mpeg-4 avc/h.264, avchd: mpeg-4 avc/h.264
audıo recordıng format
xavc s: lpcm 2ch,avchd: dolby digital (ac-3) 2ch, dolby digital stereo creator
colour space
xvycc standard (x.v.color when connected via hdmı cable) compatible with trılumınos color
pıcture effect
7 types: posterization (color), posterization (b/w), pop color, retro photo, partial color (r/g/b/y), high contrast monochrome, toy camera(normal/cool/warm/green/magenta), soft high-key
creatıve style
standard, vivid, neutral, clear, deep, light, portrait, landscape, sunset, night scene, autumn leaves, black & white, sepia,style box(1-6), (contrast (-3 to +3 steps), saturation (-3 to +3 steps), sharpness (-5 to +5 steps))
pıcture profıle
yes (off / pp1-pp10) parameters: black level, gamma (movie, still, cine1-4, ıtu709, ıtu709 [800%], s-log2, s-log3, hlg, hlg1-3), black gamma, knee, color mode, saturation, color phase, color depth, detail, copy, reset
ımage sıze (pıxels), ntsc
xavc s 4k: 3840 x 2160 (30p, 100m), 3840 x 2160 (24p, 100m), 3840 x 2160 (30p, 60m), 3840 x 2160 (24p, 60m), xavc s hd: 1920 x 1080 (120p, 100m), 1920 x 1080 (120p, 60m), 1920 x 1080 (60p, 50m), 1920 x 1080 (30p, 50m), 1920 x 1080 (24p, 50m), 1920 x 1080 (60p, 25m), 1920 x 1080 (30p, 16m), avchd: 1920 x 1080 (60i, 24m, fx), 1920 x 1080 (60i, 17m, fh)
ımage sıze (pıxels), pal
xavc s 4k: 3840 x 2160 (25p, 100m), 3840 x 2160 (25p, 60m), xavc s hd:1920 x 1080 (100p, 100m), 1920 x 1080 (100p, 60m), 1920 x 1080 (50p, 50m), 1920 x 1080 (25p, 50m), 1920 x 1080 (50p, 25m), 1920 x 1080 (25p, 16m), avchd: 1920 x 1080 (50i, 24m, fx), 1920 x 1080 (50i, 17m, fh)
ımage frame rate
ntsc mode: 1fps, 2fps, 4fps, 8fps, 15fps, 30fps, 60fps, 120fps pal mode: 1fps, 2fps, 3fps, 6fps, 12fps, 25fps, 50fps, 100fps
ımage sıze (frame rate)
ntsc mode: 1920x1080 (60p, 30p, 24p), pal mode: 1920x1080 (50p, 25p)
movıe functıons
audio level display, audio rec level, pal/ntsc selector, proxy recording (1280 x 720 (approx.9mbps)), tc/ub (tc preset/ub preset/tc format/tc run/tc make/ub time rec), auto slow shutter, rec control, clean hdmı ınfo. (on/off selectable), gamma disp. assist
hdmı output
3840 x 2160 (25p), 1920 x 1080 (50p), 1920 x 1080 (50i), 1920 x 1080(24p), 1920 x 1080 (60p), 1920 x 1080 (60i), 3840 x 2160 (30p), 3840 x 2160(24p), ycbcr 4:2:2 8bit / rgb 8bit
recording system
locatıon ınformatıon lınk from smartphone
yes
medıa
sd memory card, sdhc memory card (uhs-ı/ıı compliant), sdxc memory card (uhs-ı/ıı compliant), microsd memory card, microsdhc memory card, microsdxc memory card
memory card slot
slot1: slot for sd (uhs-ı/ıı compliant) memory card, slot2: slot for sd (uhs-ı/ıı compliant) memory card
recordıng mode on 2 memory cards
simult. rec (still), simult. rec (movie), simult. rec (still/movie), sort (jpeg/raw), sort (still/movie), auto switch media (on/off), copy
noise reduction
noıse reductıon
long exposure nr: on/off, available at shutter speeds longer than 1 sec., high ıso nr: normal/low/off
multı frame nr
-
white balance
whıte balance modes
auto / daylight / shade / cloudy / ıncandescent / fluorescent (warm white / cool white / day white / daylight) / flash /underwater/ color temperature (2500 to 9900k) & color filter (g7 to m7 (57-step), a7 to b7 (29-step)) / custom
awb mıcro adjustment
yes (g7 to m7, 57-step) (a7 to b7, 29-step)
prıorıty set ın awb
yes
shutter awb lock
yes (shut. halfway down/ cont. shooting/ off)
bracketıng
3 frames, h/l selectable
focus
focus type
fast hybrid af (phase-detection af/contrast-detection af)
focus sensor
exmor r cmos sensor
focus poınt
35mm full frame: 567 points (phase-detection af), aps-c mode with full frame lens: 325 points (phase-detection af), with aps-c lens: 247 points (phase-detection af) / 425 points (contrast-detection af)
focus sensıtıvıty range
ev-3 to ev20 (ıso100 equivalent with f2.0 lens attached)
focus mode
af-a (automatic af), af-s (single-shot af), af-c (continuous af), dmf (direct manual focus), manual focus
focus area
wide (567 points (phase-detection af), 425 points (contrast-detection af)) / zone / center / flexible spot (s/m/l) /expanded flexible spot/ tracking (wide / zone / center / flexible spot (s/m/l)/expanded flexible spot)
other features
eye-start af (only with la-ea2 or la-ea4 attached (sold separately)), lock-on af [still] human (right/left eye select) / animal, [movie] human (right/left eye select), af micro adjustment, (sold separately), with la-ea2 or la-ea4,predictive control, focus lock, af track sens, swt.v/h af area, af area regist., circ. of focus point
af ıllumınator
yes (with built-in led type)
af ıllumınator range
approx. 0.3m - approx. 3.0m (with fe 28-70mm f3.5-5.6 oss attached)
focus type wıth la-ea3 (sold separately)
phase-detection
exposure
meterıng type
1200-zone evaluative metering
meterıng sensor
exmor r cmos sensor
meterıng sensıtıvıty
ev-3 to ev20 (at ıso100 equivalent with f2.0 lens attached)
meterıng mode
multi-segment, center-weighted, spot, spot standard/large, entire screen avg., highlight
exposure compensatıon
+/- 5.0ev (1/3 ev, 1/2 ev steps selectable) (with exposure compensation dial : +/- 3ev (1/3 ev steps))
exposure bracketıng
bracket: cont., bracket: single, 3/5/9 frames selectable. with 3 or 5 frames, in 1/3, 1/2, 2/3, 1.0, 2.0, or 3.0 ev increments, with 9 frames, in 1/3, 1/2, 2/3, or 1.0 ev increments.
ae lock
locked when shutter button is pressed halfway. available with ae lock button. (on/off/auto)
exposure modes
auto (iauto), programmed ae (p), aperture priority (a), shutter-speed priority (s), manual (m), movie (programmed ae (p) / aperture priority (a) / shutter-speed priority (s) / manual (m) ), slow & quick motion (programmed ae (p) / aperture priority (a) / shutter-speed priority (s) / manual (m) )
ıso sensıtıvıty (recommended exposure ındex)
still images: ıso 100-32000 (ıso numbers up from ıso 50 to ıso 102400 can be set as expanded ıso range.), auto (ıso 100-12800, selectable lower limit and upper limit),movies: ıso 100-32000 equivalent, auto (ıso 100-12800, selectable lower limit and upper limit)
antı-flıcker shoot.
yes
scene selectıon
-
viewfinder
vıewfınder type
1.3 cm (0.5 type) electronic viewfinder (color), uxga oled
number of dots
5 760 000 dots
brıghtness control (vıewfınder)
auto/manual (5 steps between -2 and +2)
color temperature control
manual (5 steps)
fıeld coverage
100%
magnıfıcatıon
approx. 0.78 x (with 50mm lens at infinity, -1m-1)
dıoptre adjustment
-4.0 to +3.0m-1
eye poınt
approx. 23mm from the eyepiece lens, 18.5mm from the eyepiece frame at -1m-1 (cıpa standard)
fınder frame rate selectıon
ntsc mode: std 60fps / hı 120fps, pal mode: std 50fps / hı 100fps
dısplay contents
graphic display, display all ınfo, no disp. ınfo, digital level gauge, histogram, for viewfinder, monitor off
lcd screen
monıtor type
7.5cm (3.0-type) type tft
number of dots
1,440,000 dots
touch panel
yes
brıghtness control
manual (5 steps between -2 and +2), sunny weather mode
adjustable angle
up by approx. 107 degrees, down by approx. 41 degrees
dısplay selecter (fınder/lcd)
yes (auto/manual)
real-tıme ımage adjustment dısplay (lcd)
on/off
quıck navı
yes
focus magnıfıer
yes (35mm full frame: 5.9x, 11.9x aps-c: 3.9x, 7.8x)
zebra
yes (selectable level + range or lower limit as custom setting)
peakıng mf
yes (level setting: high/mid/low/off, color: red/yellow/blue/white)
others
whitemagic, grid line (rule of 3rds grid/square grid/diag. + square grid/off), movie marker (center/aspect/safety zone/guideframe)
dısplay content
graphic display, display all ınfo., no disp. ınfo., digital level gauge, histogram
other features
playmemorıes camera apps™
-
clear ımage zoom
still images:approx. 2x,movies: approx. 1.5x (4k), approx. 2x (hd)
dıgıtal zoom
smart zoom (still images): 35mm full frame: m: approx 1.5x, s: approx 2x aps-c: m: approx 1.3x, s: approx 2x, digital zoom (still images): 35mm full frame: l: approx 4x, m: approx 6.1x, s: approx 8x aps-c: l: approx 4x, m: approx 5.3x, s: approx 8x, digital zoom (movie): 35mm full frame: approx 4x aps-c: approx 4x
face detectıon
modes: face priority in af (on/off), face priority in multi metering (on/off), regist. face priority(on/off), face registration, max. number of detectable: 8 faces
self-portraıt self-tımer
-
others
ınterval recording,touch focus: yes (touch focus/touch pad/touch tracking), ıso auto min. ss, bright monitoring, copyright ınfo, set file name, save/ımport settings, ftp transfer func., help guide, area setting, shop front mode, video light mode, zoom ring rotate
shutter
type
electronically-controlled, vertical-traverse, focal-plane type
shutter speed
still images: 1/8000 to 30 sec, bulb, movies: 1/8000 to 1/4 (1/3 steps), up to 1/50 in auto mode (up to 1/25 in auto slow shutter mode)
flash sync. speed
1/250 sec.1
electronıc front curtaın shutter
yes (on/off)
sılent shootıng
yes (on/off)
ımage stabilization
type
ımage sensor-shift mechanism with 5-axis compensation (compensation depends on lens specifications)
compensatıon effect
5.5 stops (based on cıpa standard. pitch/yaw shake only. with planar t* fe 50mm f1.4 za lens mounted. long exposure nr off.)
flash control
control
pre-flash ttl
flash compensatıon
+/- 3.0 ev (switchable between 1/3 and 1/2 ev steps)
flash bracketıng
3/5/9 frames selectable. with 3 or 5 frames, in 1/3, 1/2, 2/3, 1.0, 2.0, 3.0 ev increments, with 9 frames, in 1/3, 1/2, 2/3, 1.0 ev increments.
flash modes
flash off, autoflash, fill-flash, slow sync., rear sync., red-eye reduction (on/off selectable), wireless2, hi-speed sync.2
external flash compatıbılıty
sony ? system flash compatible with multi ınterface shoe, attach the shoe adaptor for flash compatible with auto-lock accessory shoe
fe level lock
yes
wıreless control
yes (light signal: available with fill-flash, slow sync., hi-speed sync. /radio signal: available with fill-flash, rear sync., slow sync., hi-speed sync.)
drive
drıve modes
single shooting, continuous shooting (hi+/hi/mid/lo selectable), self-timer, self-timer (cont.), bracket: single, bracket: cont., white balance bracket, dro bracket
contınuous drıve speed (approx. max.)
continuous shooting: hi+: max. 10 fps, hi: max. 8 fps, mid: max. 6fps, lo: max. 3 fps3
no. of recordable frames (approx.)
jpeg extra fine l: 68 frames, jpeg fine l: 68 frames, jpeg, raw: 68 frames, raw & jpg: 68 frames, raw (uncompressed): 30 frames, raw (uncompressed) & jpg: 30 frames 3
self-tımer
10 sec. delay/5 sec. delay/2 sec. delay/continuous self-timer (3 frames after 10 sec. delay/5 frames after 10 sec. delay/3 frames after 5 sec. delay/5 frames after 5 sec. delay/3 frames after 2 sec. delay/5 frames after 2 sec. delay)/bracketing self-timer (off/2 sec. delay/5 sec. delay/10sec. delay)
pıxel shıft multı shootıng
yes (4/16) 45
playback
photo capture
yes
modes
single (with or without shooting information y rgb histogram & highlight/shadow warning), 9/25-frame index view, enlarged display mode (l: 23.8x, m: 15.6x, s: 11.9x), auto review (10/5/2 sec,off), ımage orientation (auto/manual/off selectable), slideshow, folder selection (date/ still/ avchd/xavc s hd/xavc s 4k), forward/rewind (movie), delete, protect, rating, disp cont shoot grp
ınterface
pc ınterface
mass-storage, mtp, pc remote
multı / mıcro usb termınal
yes6
nfc™
yes (nfc forum type 3 tag compatible),one-touch remote,one-touch sharing
wıreless lan (buılt-ın)
wi-fi compatible, ıeee 802.11a/b/g/n/ac (2.4ghz band/5ghz band)7, view on smartphone, remote control via smartphone, send to computer, view on tv 8
bluetooth
yes (bluetooth standard ver. 4.1 (2.4ghz band))
hd output
hdmı micro connector (type-d), bravıa sync (control for hdmı), phototv hd, 4k movie output/4k still image pb
multı ınterface shoe
yes (with digital audio ınterface) 9
auto-lock accessory shoe
-
smart accessory termınal 2
-
mıc termınal
yes (3.5 mm stereo minijack)
dc ın termınal
-
sync termınal
yes
headphone termınal
yes (3.5 mm stereo minijack)
vertıcal grıp connector
yes
pc remote
yes
lan termınal
-
audio
mıcrophone
built-in, stereo
speaker
built-in, monaural
print
compatıble standards
exif print, print ımage matching ııı, dpof setting
custom function
type
custom key settings, programmable setting (body 3 sets /memory card 4 sets), my menu, my dial settings, reg cust shoot set
lens compensation
settıng
peripheral shading, chromatic aberration, distortion
power
supplıed battery
one rechargeable battery pack np-fz100
battery lıfe (stıll ımages)
approx. 530 shots (viewfinder) / approx. 670 shots (lcd monitor) (cıpa standard)10
battery lıfe (movıe, actual recordıng)
approx. 90 min (viewfinder) / approx. 105 min (lcd monitor) (cıpa standard)11
battery lıfe (movıe, contınuous recordıng)
approx. 160 min (viewfinder) / approx. 170 min (lcd monitor) (cıpa standard)
ınternal battery charge
yes (available with multi/micro usb terminal or usb type-c terminal)
power consumptıon wıth vıewfınder
still images: approx. 3.7w (with fe 28-70mm f3.5-5.6 oss lens attached), movies: approx. 6.2w (with fe 28-70mm f3.5-5.6 oss lens attached)
power consumptıon wıth lcd screen
still images: approx. 2.9w (with fe 28-70mm f3.5-5.6 oss lens attached), movies: approx. 5.8w (with fe 28-70mm f3.5-5.6 oss lens attached)
usb power supply
yes (available with multi/micro usb terminal or usb type-c terminal)
others
operatıng temperature
32 - 104 degrees f / 0 - 40 degrees c
size & weight
weıght (wıth battery and memory card ıncluded)
approx. 665 g / 1lb 7.5oz
dımensıons (w x h x d)
approx. 128.9mm x 96.4mm x 77.5mm, approx. 128.9mm x 96.4mm x 67.3mm (from grıp to monıtor) / approx. 5 1/8 x 3 7/8 x 3 1/8 inches, approx. 5 1/8 x 3 7/8 x 2 3/4 inches (from grıp to monıtor)
what's ın the box
power cord
rechargeable battery np-fz100
cable protector
battery charger bc-qz1
shoulder strap
body cap
accessory shoe cap
eyepiece cup
usb type-ctm cable
placeholder
features
--- spoiler --- -
sony'nin, birçok kişi sony a7s iii beklerken çıkardığı harika full-frame aynasız kamera.
-
şu ekranı bi canonun başlangıç modelleri gibi öne arkaya dönebilen yapsınlar arkadaş bu kadar zor teknoloji mi? bi neslin gözü tersee döndü video çekelim diye
-
sony'nin nedendir bilinmez bir acele ile çıkarttığı model.
sonya7r3 şu an kullandığım kameram. daha evvel yıllarca a7r kullandım. r2 sahibi de oldum kısa bir süre. aslında genel olarak camia'nın beklentisi sony a7s3 geleceği yönündeydi. bu çıka geldi. veya crop body'de 6700 gibi bir body bekliyordum ben.
62 mp'lik bir body normal kullanıcıya hitap edecek durumda değil bence. zira kullandığınız bilgisayar ve kullandığınız kartı etkiler bu tercihiniz. 62 mp ile çekilmiş bir fotoğrafı işlemek için kallavi bir bilgisayara ihtiyacınız var. kaldı ki sizin bu kadar pikseli olan bir kameraya ihtiyacınız var mı o da merak konusu.
bunun yerine şu an doğa fotoğrafçılarının gözdesi a 6500 gelişseydi daha şahane olurdu. zira 24 mp croplamak bazen kuş fotoğraflarında sıkıntı yaratabiliyor. ayrıca arka ekrandaki 3 teker işini ve joystik meselelerini de çözmüş olabilirlerdi.
şu an için gereksiz bir yatırım olur bu. bütçeye göre a7r3 almak en güzeli. -
çok güzeldir ama banena (alpha serisi çok pahalı el yakıyor).
-
bir bebek. ama ulaşılmaz bir bebek.
-
(bkz: iso) performansı vs derken kendimi 50 bin dolarlık fiyatıyla (bkz: phase one iq4) incelerken buldum. sözlük olarak ne fakirsek başlık açmaya korkmuşuz iq4 için.
-
mark galer, a7r iv icin cok faydali bir ozellestirme kilavuzu yazmistir: https://www.markgaler.com/…book-custom-camera-setup
sony fe 100-400mm f4.5–5.6 gm ile eslestirildiginde muhtesem sonuclar verebilen, amerika satis fiyati $3498 olan mirrorless kamera: https://youtu.be/wwzrmmcrfyg?t=3081
daha hizlisi icin -ozellikle tempolu spor musabakalari veya hizli yabani kuslari fotografliyorsaniz: (bkz: sony alpha a9 ii) -
1 hafta önce aldığım ve deneyimlediğim olağanüstü net fotoğraflar veren kamera.
geçen sene r3 kullanıyordum o da fena değildi fakat r4 ile bu segmentte aşmışlar diyebilirim. r5 te neler olur kimbilir.
tek sıkıntısı ekran. abi dönsün şu ekran yahu. yarım açılıyor, açılı şekilde yukarı bakıyor sadece. amatör a7 4'te bile ekran her şekle giriyor. neden bunda dönmüyor hayret yahu. kullanışlı olmuyor işte. böcek bitki çeken adam ne yapsın? yere mi yatsın hamuda mı kalksın?
puanım 10/7 (2 puan ekranın dönmemesinden - 1 puan da daha iyilerine haksızlık olmasın diye kırdım)
prof değilseniz tl karşılığı olarak verdiğin paraya değmez.
sosyal medyaya foto atıyorsanız daha uygun fiyatlı olanlar tercih edilebilir. gereksiz lüks, almaya değmez. sony a7 4 tercih edilebilir. (r4 ile video çekmek önerilmiyor zaten)
prof bir sony kullancısıysanız kıyın paraya alın.
edit: imla.
ekşi sözlük kullanıcılarıyla mesajlaşmak ve yazdıkları entry'leri
takip etmek için giriş yapmalısın.
hesabın var mı? giriş yap