| View previous topic :: View next topic |
| Author |
Message |
my_photography
Joined: 03 Nov 2008
Posts: 2772
Location: Pearl of the Orient
Expire: 2016-12-25
|
 Posted: Tue Aug 24, 2010 9:23 am Post subject: Single Lens Translucent (SLT) Camera A55 & A33 from Sony |
 |
|
my_photography wrote:
Sony announces two new cameras, the A55 and A33. This pair are supposed to be the first Single Lens Translucent (SLT) digital cameras.
They uses pellicle mirror instead of rapid return mirror like those in SLR/DSLR.
SLT cameras offer live view with full-time fast phase-detection AF whether in stills or movie shooting. This is achieved by having a fixed, semi-transparent mirror that redirects a small amount of light onto the AF sensor while allowing the rest through onto the main imaging sensor.
Fastest APS-C shooting with 10fps for A55 and it is supposed to be the 1st camera that allows Quick AF Full HD movie shooting.
(for full detail: http://www.dpreview.com/news/1008/10082421sonyslta55a33.asp)
_________________
Zeiss: CJZ Flektogon 20/2.8, CJZ Flektogon 20/4, , CJZ Pentacon 29/2.8, CJZ Flektogon 35/2.4, CJZ Pancolar 50/1.8, Tessar 50/2.8, Biotar 7.5cm/1.5, CJZ Pancolar 80/1.8, CJZ Sonnar 135/3.5, CJZ Pentacon 135/2.8 CJZ Sonnar 200/2.8
Other Germany: Meyer Primoplan 50/1.8, Meyer Trioplan 100/2.8
Takumar: SMC 50/1.4 Super Tak 55/2, Super Tak 85/1.9, S-M-C 135/3.5, Super Tak 150/4
Russian: Zenith 16/2.8, Mir-24M 2/35, Volna-9 50/2.8, Helios 44M (58/2), Helios 44M-3 MC (58/2), Helios 40 (85/1.5), Tair 11A (135/2.8 )
Others: Sears 28/2.8, Sankor 35/2.8, Enna M�nchen Tele-Ennalyt 135/3.5
Zoom Sigma Zoom 28-85/3.5-4.5
|
|
| Back to top |
|
 |
Scheimpflug
Joined: 06 Feb 2010
Posts: 1888
Location: New Zealand / USA
Expire: 2011-11-18
|
| Posted: Tue Aug 24, 2010 9:36 am Post subject: Re: Single Lens Translucent (SLT) Camera A55 & A33 from |
|
|
Scheimpflug wrote:
| my_photography wrote: |
| This pair are supposed to be the first Single Lens Translucent (SLT) cameras. |
The 1965 Canon Pellix with its fixed pellicle mirror begs to differ. 
.. as does the '78 Nikon F2 H, the '89 Canon EOS RT, etc, etc.
_________________
Sigma DP1, Nikon D40 (hers ), Polaroid x530, Pentax P30t, Pentax P50, (P30t/P50 K-A to Nikon F body mount conversion)
Nikon: 18-55/3.5-5.6 "G ED II DX" (F) Soligor: 28/2.8 (FL->F converted), 135/3.5 (F), 3x TC (F, modified) Kalimar: 28-85/3.5 (F)
Vivitar: 70-210/2.8-4.0 Version 3 (F), Tele 500/6.3 Preset (F), 19/3.8 (F) Minolta: 300/5.6 (SR/MC/MD pending F conversion)
Tamron: 28/2.8 (Adaptall) Panagor: 28/2.5 (FD) Aetna: 300/5.6 (F) Osawa: MC 28/2.8 (F)
Vintage Lenses: Dallmeyer: 1940s A.M. 14in 356mm f4 (ULF->M42) 1930s Adon Telephoto Taylor, Taylor & Hobson: 1880s Rapid Rectilinear 8 1/2 x 6 1/2 11.31in f/8 (LF->?)
Parts Lenses: Nikon 35-135/3.5-4.5 (F), Sigma 70-210/4.5 (F), Nikon 50/1.8 Series E (F) |
|
| Back to top |
|
|
my_photography
Joined: 03 Nov 2008
Posts: 2772
Location: Pearl of the Orient
Expire: 2016-12-25
|
| Posted: Tue Aug 24, 2010 9:42 am Post subject: Re: Single Lens Translucent (SLT) Camera A55 & A33 from |
|
|
my_photography wrote:
| Scheimpflug wrote: |
| my_photography wrote: |
| This pair are supposed to be the first Single Lens Translucent (SLT) cameras. |
The 1965 Canon Pellix with its fixed pellicle mirror begs to differ.
.. as does the '78 Nikon F2 H, the '89 Canon EOS RT, etc, etc. |
You are definitely correct. These are supposed to be a first for digital camera. Like all previous pellicle mirror type camera, some lights are loss. I just read another interesting comment from luminous-lanscape site, Sony will not officially comment on this.
(http://www.luminous-landscape.com/reviews/cameras/sony-a55-preview.shtml About 2/3 through under "Dust and Light Loss").
_________________
Zeiss: CJZ Flektogon 20/2.8, CJZ Flektogon 20/4, , CJZ Pentacon 29/2.8, CJZ Flektogon 35/2.4, CJZ Pancolar 50/1.8, Tessar 50/2.8, Biotar 7.5cm/1.5, CJZ Pancolar 80/1.8, CJZ Sonnar 135/3.5, CJZ Pentacon 135/2.8 CJZ Sonnar 200/2.8
Other Germany: Meyer Primoplan 50/1.8, Meyer Trioplan 100/2.8
Takumar: SMC 50/1.4 Super Tak 55/2, Super Tak 85/1.9, S-M-C 135/3.5, Super Tak 150/4
Russian: Zenith 16/2.8, Mir-24M 2/35, Volna-9 50/2.8, Helios 44M (58/2), Helios 44M-3 MC (58/2), Helios 40 (85/1.5), Tair 11A (135/2.8 )
Others: Sears 28/2.8, Sankor 35/2.8, Enna M�nchen Tele-Ennalyt 135/3.5
Zoom Sigma Zoom 28-85/3.5-4.5
|
|
| Back to top |
|
|
ellepi
Joined: 07 Aug 2010
Posts: 486
Location: Treviso - Italia
|
| Posted: Tue Aug 24, 2010 10:16 am Post subject: Re: Single Lens Translucent (SLT) Camera A55 & A33 from |
|
|
ellepi wrote:
| my_photography wrote: |
| Scheimpflug wrote: |
| my_photography wrote: |
| This pair are supposed to be the first Single Lens Translucent (SLT) cameras. |
The 1965 Canon Pellix with its fixed pellicle mirror begs to differ.
.. as does the '78 Nikon F2 H, the '89 Canon EOS RT, etc, etc. |
You are definitely correct. These are supposed to be a first for digital camera.... |
if I understand correctly, they are the first that use this kind of mirror only for AF system and not for viewfinder.
| DPReview wrote: |
| semi-transparent mirror that redirects a small amount of light onto the AF sensor while allowing the rest through onto the main imaging sensor |
infact they use an electronic viewfinder
_________________
M42 | Super Takumar 20/4, 28/3.5, 35/3.5, 55/1.8, 105/2.8, 135/3.5, 200/4 - Tair-11A - Helios-44M - Mir-1B
K | Pentax M40/2.8, K 55/2, A 50/1.7, M 50/1.7, M 135/3.5 - Jupiter 37-AM
Micro nikkor 60/2.8
Mamiya 645 | Sekor 24/4, 55/2.8, 80/2.8, 210/4 |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
