Teleconverter - 1.4x atau 2x?

[abahwafi]

Mintak pendapat kengkawan ttg teleconverter utk dicouplekan dgn Sigma 70-200mm f2.8

Mana satu yg terbaik sbb beza harga antara dua ni around RM150 ajer. My major concern is on sharpness. Saya tahu saya akan loss about 1-stop dgn 1.4x telecon dan 2-stop dgn 2x telecon.

Tapi disebabkan f2.8, saya rasa dgn 2x telecon saya akan dapat max aperture f4 which is still OK. Boleh sesiapa tolong komen ? :?:

[dbins]

sebenarnya dgn 1.4x dia jadi f/4... dgn 2x dia jadi f5.6... kalau tak silap le... :P

[dbins]

Extracted from THE ULTIMATE EXPOSURE COMPUTER (http://www.fredparker.com/ultexp1.htm)... sekian.


You only have to remember two numbers; 1 and 1.4. Double each one alternately and you will have two series:

1, 2, 4, 8, 16, 32 and 1.4, 2.8, 5.6, 11, 22

So, combining the two sequences in numerical order gives the full sequence:

1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32

What you need to remember is that, within each factor, as you move from one number to the next, the amount of light is either doubled or halved. Some cameras may include numbers between the numbers mentioned above. Those numbers represent half or third stops. For the purpose of what you are learning here, ignore the in-between numbers.

[buntalshoot]

sebenarnya dgn 1.4x dia jadi f/4... dgn 2x dia jadi f5.6... kalau tak silap le... :P

1.4X jadi f4... (saya guna 1.4X Kenko)
2X tak tahu ler jadi f4 ker f5.6
sbb tak penah try....

tapi pandangan saya... dan berdasarkan review dalam intenet....
telecon 2X rasanya gambar akan jadi soft
dan tak setajam telecon 1.4X...

lagipun masa saya nak beli dulu...
ramai otai nasihatkan saya beli 1.4X dari 2X... :D
betul tak otai2?

[kudean]

ya betul .. (eh .. menyahut plak .. mcm otai .. )

rgds

[abahwafi]

Terima kasih pada dbins dan buntalshoot....so, i think 1.4x telecon is a better choice.

[NiCanOly]

go for the 1.4x

[abahwafi]

go for the 1.4x

Yes...i will. Hopefully Desmond has stock for it 8)

[AZRA]

abahwafi --->> bleh survey untuk saya gak .. nak guna utk 80-200 (sms me kalau ada 012-4610041).

ari tu dah try yg buntalshoot punya kat wangsa maju ..dier tak mau juai la pulak....tension tul..heheehe

[abahwafi]

abahwafi --->> bleh survey untuk saya gak .. nak guna utk 80-200 (sms me kalau ada 012-4610041).

ari tu dah try yg buntalshoot punya kat wangsa maju ..dier tak mau juai la pulak....tension tul..heheehe

Ok...nanti bila aku dah beli aku apdet ler kat sini. Aku rasa utk Nikon 80-200mm, elok ko pakai Kenko or Nikkor original. Aku nak carik Sigma punyer.

[AZRA]

ya yang test Wan punya TC tu Kenko brand ..thank you in advance (kat penang tak ada stock la)

Wan -->> nak juai tak TC hang tu? ..(mencuba nasib sekali lagi)

[buntalshoot]

ya yang test Wan punya TC tu Kenko brand ..thank you in advance (kat penang tak ada stock la)

Wan -->> nak juai tak TC hang tu? ..(mencuba nasib sekali lagi)

itulah sahaja harta peninggalan saya... :D
kat desmond ada lagi.... :D

[AZRA]

Wan, ada nombot tepon desmond tak? .. klu boleh nak buat arrangement courier

[buntalshoot]

Wan, ada nombot tepon desmond tak? .. klu boleh nak buat arrangement courier

ni no dalam henset...add lebih kurang 6 bln yg lepas..
tatau masih aktif or not....

DESMOND - 012-3806733

cuba2lah... :D

[AZRA]

dah call ada stock .... dan booked .. akan collect masa saya ke Melaka 23-25hb ni ..teng kiew Wan.

[abahwafi]

Aku dah beli Sigma 1.4x APO DG Teleconverter - RM580 kat Desmond. Last sunday pegi test power kat taman burung. Max aperture jadi f4 dan max zoom lenght jadik 280mm(equal to 420mm with D70). So far very satisfied. Focusing speed still maintain.

Highly recommended utk sesiapa yg pakai Sigma 70-200mm f2.8

Contoh gambar kat bawah ni (Sigma 70-200mm + 1.4x TC) :

http://static.flickr.com/72/198620528_aa168cabc7_o.jpg

[PeLaris]

abahwafi..
tc ni susunan nyeR 4 atau 7 elemen?

[abahwafi]

5 elements in 3 groups 8)

[PeLaris]

harlamak... saya silap tanya daaa...
lupa plakz istilah dia... lagging semacam niH!
nak tanya benda lain.. lain ditanya... ehekS!
jap nak pk.. nak gi pasar dulu..

;)

[image42]

Aku dah beli Sigma 1.4x APO DG Teleconverter - RM580 kat Desmond. Last sunday pegi test power kat taman burung. Max aperture jadi f4 dan max zoom lenght jadik 280mm(equal to 420mm with D70). So far very satisfied. Focusing speed still maintain.

Highly recommended utk sesiapa yg pakai Sigma 70-200mm f2.8

Contoh gambar kat bawah ni (Sigma 70-200mm + 1.4x TC) :

http://static.flickr.com/72/198620528_aa168cabc7_o.jpg

Gambar nie memang cantik la..sharpness cukup..background pun dah blur..tahniah...Abahwafi ada tak contoh gambar2 lain lagi yg ambil pakai Teleconverter ini? TQ

[shamabd]

bagusjugak kalau F leh jadi contant F4 ni.. Shutter speed leh kasi tinggi lagi.. Letak ISO 400 lak.. Speed kow kow tinging.. tak bergetak la tangan