Hasselblad HTS 1.5 Manual

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Side 1/8

www.hasselblad.com

USER MANUALS

HTS 1.5 – 3043400 – 2011 – v3

Item no.: 3043400

HTS 1.5

1/8

HTS 1.5

Contents

Introduction 1

Basic explanation of tilt 3

Basic explanation of shift 9

Getting started 14

Tilt – in practice 19

Shift – in practice 23

Creative opportunities 28

Appendix 32

General points 33

Scheimpug principle 34

Specications 36

FAQ 39

Terminology 40

What is it ?

The HTS 1.5 is an accessor y for H-sys tem cam eras that great ly

expand s their usabilit y both technically and creatively. It works

by allowing a lens to be moved in tw o diff erent way s to meet

some ch allenges t ypically found in professional photog raphy. It

is compact, simple to use and can prove to be an invaluable aid

in cert ain situations.

The HTS 1.5 adapter is mounted between the lens and the cam-

era body and, by wa y of the dat abus connections, aut omatically

conveys d ata to ens ure the optimum in convenience and a ccu -

racy of exposure. This infor mation is nally st ored as metadat a

with each le tha t can then be accessed in P hocus.

And it is in P hocus th at DAC cor recti ons autom atica lly take into

account all tilt, shift a nd rotational m ovement s as well as a

long list of speci c lens data. This ability, unique to Hasselblad,

ensures the except ional quality produced by the HTS 1.5.

What does it do?

The HTS 1.5 primar ily solves problems but equally well pro-

motes cr eative oppor tunit ies to provide the photog rapher with

an almost i nvaluab le tool.

Problem solving would be m ost obviously benecial in architec-

tural work, close-up prod uct photogr aphy and c ert ain kinds of

docum entat ion, for exa mple.

Creative opportu nities would cover almost any ar ea of phot og-

raphy where a fresher app roac h is requir ed regar ding selective

focus and/or perspective manipulation.

How does it work?

It exploits established optical principles familiar to view camera us-

ers, namely ‘ ’ and ‘ ’. These capabilities are further exploittilt shift -

ed by being able to rotate the whole unit. Only basic explanations

are included here as In-depth technical descriptions are beyond

the scope of this m anual. A search on the Internet under headings

such as ‘camera movements’ and ‘Scheimpug Pr inciple’, for

example, can provide much m ore insig ht into the concepts.

To be able to allow such moveme nts using a lens from t he sta n-

dard r ange, an opt ical converter that increases lens coverage is

integr ated int o the design. In this way the ada pter expa nds the

use of a num ber of lens es that m any users a lready have ther eby

avoiding t he need for dedicated lenses.

Very sim ply put , tilting t he lens moves the orientation of the

plane of sharp focus while shifting the lens moves th e projected

image cir cle inside the cam era.

What problems does it solve?

There a re basically two ar eas that can be helped by tilt and

shift:

· Tilt is used when you w ant to change the orientation of the

plane of sharp focus.

· Shift is used to change the area selected for coverage of a

scene while retaining par allel lines in the image. It can also

used to create panorama s when used horizontally.

Although tilt is typically us ed in close-up product or lan dscap e

photography a nd shift is typically used in ar chitectural ap plica -

tions, it w ould be wr ong to hig hlight t hese areas too much .

There a re many sit uations w here some tilt or some shift or

both would go a long way in producing a competitive ed ge on an

other wise normal sh ot.

How is it creat ive?

The actions tha t produce pr actic al solut ions to problems cr eate

effects th at can also be classi ed as creative, dependent on

the intention. For example, it might be said that “st itchin g” (the

digit al combining of several ima ges) creativ ely exploits the ‘cor-

rect ’ use of movements w hile selective de-f ocusing creati vely

exploits the ‘incorrect’ use.

Hasselblad HTS 1.5 – Introduc tion

Compatibility

The HTS 1.5 was specically designed for use with the HCD

4/28mm and HC 2.8/80mm lenses, and these should be seen

as the pr imar y choice for maximum performance. However, the

HC 3.5/35mm, HC 3.5/50mm and HC 2.2/100mm lenses can

also be used with excellent results. Th e 13mm, 26m m and

52 mm extension tubes are also compat i ble with a ll of these

lenses. The HC 3.2/150, HC 4/210 and HC 4.5/300 can also

be used but handli ng and performanc e are compromised and

are therefore not recommended for crit ical work.

Please note that t h e HTS 1.5 is not compat ible wit h the

H1.7x conver t er, CF lens ad apter, HC 3.5-4/50-110mm, HCD

4-5.6/35-90mm, or the HC 4/120mm M acro.

The autofocus and focus conrm at ion features on t he camera

are also au tomati cally de-activ ated for a ll lenses.

Tilt

Tilt changes the orientation of the

plane of sharp focus. This creates

the appearance of an ‘increase’ or

‘decrea se’ in depth of ﬁeld.

Shift

Shift allows perspective control

by preserving parallel lines in the

image. It also allows ‘stitched’

panoramas.

The integral converter in th e HTS 1.5 alt ers the an gle of view

(in eff ect, extending the focal leng th) of each lens and causes

some loss of speed. For example, a HC 2.8/80mm - HTS 1.5

combin ation will produce an image you mig ht expect from a

4.5/128 mm lens on its own, as a roug h guide. Please see

under for full d etails. Specications

For the H TS to function correctly, the rmware in the ca mera and Pho cus soft-

ware must be recent. Ple ase ensure yo u have the latest versions installed. You

can download them free of charge fro m:

http: //ww w.ha sselb lad.c om/se rvic e--suppo rt /te chnic al-suppo rt/softw are-d ownloads

Rotation

Allows the whole unit,

at any tilt and shift set-

tings, to be rotated for

further control.

20º

total

180º

total

36mm

total

TILT

– a basic explanation

A classic problem in close- up product

photography and similar areas, is the lack

of depth of eld.

Using tilt can solve many such problems

as well as offering creative solutions.

With a basic understanding o f the principles behind

tilt and shift, you will gain mor e conﬁdent contro l of

the HTS 1.5 and be able to exploit i ts potent ial to the

optimum.

The function of a camer a lens is to project an image o nto a sen-

sor. The senso r, being effectively two dimensional and lying in a

specic plane, can only r ecord a t wo dime nsional  at plane, in

the sam e orient ation, in the subject.

In pra ctice we norma lly perc eive so me areas in front an d behind

this at plane in the subjec t as “sharp” and t his is t erm ed the

depth o f eld (which in its tur n expan ds or cont rac ts acco rding

to aper ture set tin g and subject dis tanc e).

Tilt

The lens is normally set per pendicular to t he image p lane and

there fore is ef fect ively in parallel with th e sensor as well. This

provides three planes t o consider – the sensor, the lens an d the

subject – all par allel. They a re also interrelat ed, so moving one

will have an e ffect on the others. This is where tilt is int roduced.

In the diag ram below, the imag e plane, lens plane an d subject

plane ar e parallel. This creates an ar ea of acc eptable sharp -

ness t he dept h of eld. In t his case, not all of the subject –

lies wit hin the bo undar ies of the dept h of e ld and tho se par ts

there fore appear unsharp. By tilt ing the lens it is possible to

includ e more of t he objects in th e depth o f eld wit hout having

to use a smaller aper ture.

Basic explanation of tilt

Tilt

Original scene

from camera

viewpoint In this case, the lens is

focused in front of the

yellow object.

At the given ap erture

settin g, the yellow object

is covere d by the depth

of ﬁeld, the red object

partly covere d and the

blue object not covered

at all. The yellow object

will therefore be accept-

ably sharp, the red object

partly sharp and the blue

object un sharp.

Lens plane

Image (sensor) plane

Depth of ﬁeld

Subject plane

Produkt Specifikationer

Mærke:	Hasselblad
Kategori:	Ikke kategoriseret
Model:	HTS 1.5

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