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09-06-2010, 02:50 AM   #1
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[langtitle=fr]Titl shift lens for the 645D[/langtitle]

is there any (24mm equivalent on CaNikon) Tilt/Shift lens fort the 645D ?

thank you


09-06-2010, 03:24 AM   #2
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Hartblei made some : Kiev Camera & HARTBLEI | Tilt-Shift Lenses & Medium Format Cameras

However as you can see those lenses are not available anymore, however, new lenses seem to be available :
Hartblei - Optics by Carl Zeiss

Those seem to be available only on 35mm SLR mounts but if you are into it, it may be possible to get one on special order... at a price.
09-06-2010, 03:30 AM   #3
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thank you
but with the sensor crop a 40mm will be like a 60 mm about ?
09-06-2010, 03:40 AM   #4
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QuoteOriginally posted by erick Quote
thank you
but with the sensor crop a 40mm will be like a 60 mm about ?
Hartblei has a 45mm T/S which you can adapt using an adapter. You can find it on the used market for around $1500 give or take.

45mm on 645 is kinda sorta like a 30mm on FF. With the 1.3x crop factor, it's going to be like a 40mm on FF, so not really wide like the Canikon 24mm T/S (let alone Canon's 17mm T/s)

09-06-2010, 03:45 AM   #5
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TSE 17 is too wide for me but the new Canon TSE 24 is a killer

40 mm on CaniKon is not really wide ? I was looking for something like the HCD 28 mm + TS system from Hasselblad

I am looking forward for thrt 645D anyway

thank you
09-06-2010, 05:13 PM   #6
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40mm is 40mm. It's going to look like something just a little wider than a "standard" focal length lens.

I think the only way you can have a truly wideangle tilt/shift on medium format digital is to use a Hasselblad ArcBody with a digital back, and the widest 35mm Grandagon lens. Also the Hartlbei 45/4.5 would work as a wideangle on Contax/Mamiya/PhaseOne MF digital camera with the PhaseOne P65+, which is full frame 645.
09-06-2010, 05:44 PM   #7
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A 30mm lens on the 645D would be the equivalent of a 24mm on a FF 35mm sensor. I hope Pentax is working on a WA tilt for the 645D. This camera will be popular with landscape photographers, and a WA tilt would sell well IMHO.
09-06-2010, 06:39 PM   #8
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QuoteOriginally posted by surfotog Quote
A 30mm lens on the 645D would be the equivalent of a 24mm on a FF 35mm sensor. I hope Pentax is working on a WA tilt for the 645D. This camera will be popular with landscape photographers, and a WA tilt would sell well IMHO.

We're getting the mm's all mixed up here


On film, the Hartlbei 45mm is a wide angle lens. In terms of diagonal angle of view, it's like a 30mm lens on a full frame, 135 format (35mm) camera (I guess more like 28mm). But because the 645D has a roughly 1.3x "crop factor", it's going to be the equivalent of a 37mm lens on 135 format (35mm).


So a Canon 5D with a Hartblei 35mm f2.8 tilt shift lens is going to have a wider FOV than the 645D with the Hartblei 45mm f3.5.

Regarding Pentax, they've had shift lenses before, but never tilt lenses, so I think it's not going to happen.

09-06-2010, 06:54 PM   #9
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QuoteOriginally posted by RawheaD Quote
...I think the only way you can have a truly wideangle tilt/shift on medium format digital is to use a Hasselblad ArcBody with a digital back, and the widest 35mm Grandagon lens. Also the Hartlbei 45/4.5 would work as a wideangle on Contax/Mamiya/PhaseOne MF digital camera with the PhaseOne P65+, which is full frame 645.
The ArcBody would be a good solution or a digital back on a 2x3 or 4x5 view camera. Either way, the digital back is going to be the major expense. There several other options on the high end including cameras like the Cambo Wide RS which supports lenses as short as 28mm, has vert/horiz shift (geared!) and can be configured to add swing/tilt. Unfortunately, if you need to ask the price, you obviously can't afford it!


Steve
09-06-2010, 07:55 PM   #10
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RawheaD wrote:

"so a Canon 5D with a 35/2.8 tilt shift is going to have a wider FOV than the 645D with the hartblei 45mmf/3.5.

Not really, the simple way to figure the 35mm equivalent FOV with the 645D is to multiply focal length by .8. 45mm x.8= 36mm. So the 45mm on a 645D will have almost exactly the same FOV as the 35mm lens on the 5D.

According to the Canadian Pentax rep who did the LL interview, an ultrawide will be announced soon. As I remember seeing on the pentax roadmap it will be a 25mm, equivalent to a 20mm on your 5D.
09-06-2010, 10:34 PM   #11
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QuoteOriginally posted by surfotog Quote
A 30mm lens on the 645D would be the equivalent of a 24mm on a FF 35mm sensor. I hope Pentax is working on a WA tilt for the 645D. This camera will be popular with landscape photographers, and a WA tilt would sell well IMHO.
I cannot imagine shooting Architecture Landscape without a tilt shift lens, wide of course
09-08-2010, 06:24 AM   #12
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QuoteOriginally posted by erick Quote
I cannot imagine shooting Architecture Landscape without a tilt shift lens, wide of course
It depends, if it's just for perspective correction, computer can do well (including correcting barrrel distorsion) Now, if you need to master DOF, while not closing too much down (the tilt feature) then it can't really be replaced.

Anyway, tilt-shift lenses are specialty items, very desirable for their features but a MF tilt shift would not be something affordable by you average pro-photographer...

Since, Pentax wants to address the "amateur" market first...
09-08-2010, 09:05 AM   #13
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I have a couple of these, the original tilt/shift 45 Hartblei and the newer Hartblei Super Rotator TS 45mm. There are a couple of problems in using the TS lens that have nothing to do with the lens and how wide it is but have to do with the viewfinder of the P645 which only shows something like 89% or 85% of the picture taken. So you tilt and shift, compose and focus, and when you get the slide or negs back you have found out that you lost a good chunk of your composition to vignetting due to the shift and the limited viewfinder. Of course you don't see any less that what you shot but you've lost a great deal of real estate. I will be glad to get the 645D which apparently has a 100% viewfinder.
09-08-2010, 09:12 AM   #14
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there is no liveview on the 645D ?
09-08-2010, 05:00 PM   #15
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QuoteOriginally posted by surfotog Quote
RawheaD wrote:
Not really, the simple way to figure the 35mm equivalent FOV with the 645D is to multiply focal length by .8. 45mm x.8= 36mm. So the 45mm on a 645D will have almost exactly the same FOV as the 35mm lens on the 5D.

Thanks for the formula, but I did do my own calculation and came up with 37mm, so we're saying the same thing. The fact is, a 5D + 35mm Super Rot (or the Canon/Nikon 35mm tilt shift lenses) is going to give you pretty much the same thing as a 645D + 45mm Super Rot, and so the only advantage of the 645D is going to be the higher resolution. At 4x the cost :-)
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