Friday, January 3, 2014

Sigma 18-35 F1.8


Sigma 18-35 F1.8 review


Sony FS700 with Sigma 18-35 F1.8 with Metabones adapter

One of my favorite lenses for my FS100/700 is a old Sigma 50-150 F 2.8 that I picked up
from B&H's 'used' department.  If you shoot 'large sensor' video cameras but don't operate in
the stratosphere where you can afford a Fuji Cabrio 19-90, you will probably have to 
make do with still camera lenses.  Now there are a variety of problems with this, but most 
can be worked around.  The Red Cinema 50-150 zoom was rumored to be a rehoused
Sigma 50-150....and the lens is very well suited for shooting motion pictures.  

So, when I heard about a 18-35 F1.8 zoom lens, which was coming out from Sigma, I was
interested.  I looked around everywhere but no one seemed to have it in.  It is a VERY
popular lens it seems.  I was finally able to track one down.....and wow I'm glad I did!
This lens, like the 50-150 is just about as good as it gets for shooting video.  I have
no idea how it performs on a stills camera, but it works fantastic on my FS100, 700 and
VG20.

For a 18-35 lens, this one is very big.
From left: Tamron 17-50, Sony 18-200 kit lens, Sigma 18-35, Sigma 50-150


Which makes sense.....it IS the first F1.8 zoom ever made as far as I know.  As far
as build goes, this lens is about as good as it gets.  Both the zoom and focus are made
from rubberized material and have just the right amount of resistance.  The focus
throw on the lens also seems to be just right.  What, you mean everyone doesn't
like the fact that you can focus 6 inches away, turn the focus ring 2 mm and
now you are focused at infinity????  Really?  But you don't need to turn it a full
rotation either.  There is enough 'room' to have space between the different markings,
but not so much room that you absolutely have to have a follow focus and have no
chance of pulling focus from the lens barrel because of the shake that the long focus
throws introduce.  It almost feels like this lens was actually INTENDED for video shooters.....

Ok, so it's built very nicely.  What about the image quality?  Is it worth writing home about?
Nope, it's worth flying home and telling everyone in person about!  It is just absolutely
amazing!  Sharp as a tack, great contrast, and just beautiful bokeh.  This lens will give you
some just amazing images!  Want that "wide shot that still has shallow depth of field like
you get on a full frame camera"?  You will get that with this lens.  And best of all?  The
price.  It only costs $799.  There are really only a couple cons.  It's big and heavry,
no image stabilization or autofocus available, small focal range (which is the trade off
you accept for the amazing F1.8 speed) and biggest problem of all.......because it is
such a good lens, stores can't keep it in stock, which means you may have a problem
finding one!  If you are lucky enough to find one, grab it as soon as possible.  There is
nothing like it out there.  Quick test video with way too much slow motion in it....




Pros

Great build quality

Amazing images

Brings back the nice wide shot with shallow depth of field 'full frame' look on a Super 35 cam.

Price is just amazing for what you get.

Cons

Heavy.....can be a pain to handhold as it makes the camera a bit front heavy.

Focal range is not really that big....less than a 2x lens.  But that's what you get
when you get a F1.8 zoom.

VERY hard to find!  Many places are sold out of this lens.

No image stabilization.

Nikon and Canon mount only means you can control the iris with appropriate
adapter but no possibility of autofocus (although Sigma does say a Sony A mount
version is coming.)

                                                                       Gabe Strong
    G-Force Productions
       Digital Cinema | Websites | Consulting |  Multimedia

Friday, June 21, 2013

Digislider, a review.

Here is my video review of the Digislider.



So, for the quick version:

Pros:
Lots of different options, crank handle, fast motor, slow motor
Plenty of travel for longer moves
Well built, can take some knocking around
Very nice smooth motion when using motors

Cons:
Heavy (the downside of well built).  Usually you are going to need a tripod and
lightstand or two tripods to use it.
When using crank, motion isn't perfectly smooth (although a lot of this is down to
the skill of the operator, it's just not going to be as smooth as a bearing based slider.)
That being said, it's pretty decent for the price, see the video for examples of how
smooth it can look with the crank.
When using the motors, motion is very smooth and consistent, BUT there is the noise
of the motor to consider.  This can make it a no go for interviews for example.
I haven't figured out how to use it in vertical mode as the motor doesn't seem to
have enough power when I try it.

All in all, it is a very versatile slider.  You can use it for time lapse 'motion control' as
well as video 'dolly' moves.  And you can either use a motor or the hand crank.  For
the price, it's hard to beat.





Gabe Strong
G-Force Productions
Digital Cinema | Websites | Consulting |  Multimedia



Tuesday, April 16, 2013

Northern lights video.....

A look at a night in Juneau....watch to the end, it's worth it!




                                 

Gabe Strong
G-Force Productions
Digital Cinema | Websites | Consulting |  Multimedia



Sunday, March 17, 2013

Lenses...


I'll be reviewing some more lenses shortly.  But for now, a quick preview.  One of my new favorites
for 'all around' work is a 28-105 F2.8 Tamron that I picked up off eBay.  For now, here is some stuff
I shot with it just messing around at my daughter's soccer practice, not a proper test by any means
but I wanted to try it out.






Gabe Strong
G-Force Productions
Digital Cinema | Websites | Consulting |  Multimedia






Filter this......


The FS100 is a great camera.  Very nice image.  Great price (especially nowdays).  You can
use just about any lens out there on it.  The biggest issue for me, is the missing ND filters!
I am not a narrative shooter and I have to do fast paced work quite often.  But I wanted
the 'cinematic look'.  I ended up buying the FS100, then of course Sony introduced the FS700,
which would have probably suited me better, as it has built in ND's.  I don't use a mattebox,
and use zooms probably 75% of the time. For people who shoot this way, the Xume filter
solution is ideal.  It will work with DSLR's, the FS100, or any camera really.  It would
even benefit FS700 and AF100 shooters.  Those cameras have built in ND filters, but
they are in 2 stop increments.  0 stops of ND, 2 stops of ND, 4 stops of ND, or 6 stops
of ND.  Buy a 1 stop ND screw in filter (0.3) and now you can have the odd stops
as well (1 stop, 3 stops, 5 stops and 7 stops) just by slapping the 1 stop ND filter on
the front of your lens and using the built in NDs as needed.  The biggest drawback, is that
you need to buy a lens adapter for each lens, and a filter holder for each filter.  But it's worth
it in my eyes to have such an easy solution to slap ND on and off lenses so easily!
One more thing to be aware of, is that although the rings are thin, you ARE putting the
ND filters out further in front of the lens by adding the rings (one on the lens and one
on the filter).  This can cause vignetting on wider angle lenses (say 18mm and wider
on the Super 35mm chip.)  There is a way around this however.  I just bought the
largest size ND filters I could find (82mm) and then bought step up rings from whatever
size each my individual lenses was, to 82mm.  The step rings only cost about $2 for each lens.
And now I get NO vignetting, even on my 10-20mm Sigma.  Here's a quick demo video I
threw together in about 3 minutes.  Sorry, it's a little out of focus in places, but I think
you will get the idea anyways!







Gabe Strong
G-Force Productions
Digital Cinema | Websites | Consulting |  Multimedia


Tuesday, January 8, 2013

Can't we all just be friends?

     So in the spirit of the holidays....

I'm a Mac guy.  I loved FCP, and FCP 7 was just my favorite.  It had everything I needed.
When I heard Apple was going to upgrade it to fully utilize the multi threaded, multi
core Macs, I couldn't wait.  Then came FCP X.  Nothing against it, I was just 
expecting something more like.....well like every other professional editor EVER, 
that's all!  So now I'm in this strange place.  I use FCP 7 a lot still.  I also DO have
FCP X and slowly struggle to learn to use it.  But another editor has also found it's
way onto my system.  Adobe Premiere Pro CS 6.  Really if you are going to get
After Effects and Photoshop anyways.....might as well buy the whole suite.  And
guess what?  Premiere Pro CS 6 is kind of like what I thought 'FCP 8' would be like.
It's not perfect, and there are some annoyances but to me, it's easier to learn than
FCP X as you aren't 'relearning' everything.  You can even bring over the FCP 7 
keyboard shortcuts which is really nice.

OK, so I also shoot a lot with my FS100.  Memory cards are pretty cheap ($33 or so for
a class 10 32 gig SDHC card at Walmart) but I'm not going to archive most of my stuff on
cards, because.....lets face it, I do fairly low budget stuff.  So I have come up with my own
archive system which I will fully describe in another post.  But, it involves transferring 
the video off the cards.  Now if you leave the file and folder system intact, you can 
just load the folder into Premiere Pro CS 6.  But you can't view the video anywhere
but in Premiere Pro!  So if you wanted to just take a look through some folders and
'scan' the video real quick.....you are kind of SOL on a Mac, as the .MTS files are
kind of like the mean kid at school that wouldn't play nice.  Quicktime has no
idea what to do with the .MTS files.  Enter Clipwrap.  It will 'rewrap' these .MTS
files into a nice .mov file.  No transcoding or image degradation, just wraps the
video in a .mov wrapper so you can view them nicely in Quicktime.....which
can be nice if you want to scan through the folders quickly.  However, I found
ANOTHER problem.  These new .MOV files, will work with Quicktime, but
now Quicktime is it's 'bestest friend forever' and Premiere Pro is the one being 
left out!  The files will 'sorta kinda' work in Premiere Pro CS 6, but OMG they are
more sluggish than me at 6am on a Monday!  I'm not running a top of the line system, 
but I have a hyperthreaded Quad Core with 16 gigs of Ram and a CUDA enabled 
Quadro FX4800 video card, so asking for realtime playback of a single video track 
with no effects on it didn't seem too much to ask did it?  Silly kids, I just
needed to figure out how to get them to ALL be friends together!
And of course, being such a BRILLIANT* dude, I figured out the solution.  You see, 
the way I understand it, Quicktime uses old 32 bit code.  Premiere Pro CS 6 doesn't
really like crotchety old guys that  'lived when there were stagecoaches....or dinosaurs'.
So I tried something.  After I 'rewrapped' the clips with ClipWrap to a .mov file,
I changed their extension to .mpg.  Guess what?  Now they hum right along in Premiere
Pro CS 6!  And you can still view them in Quicktime.  Not sure WHY this works, but
you might give it a try if you have a similar problem with ClipWrapped .MOV's 
bogging down CS6.  Now my last problem, was that I had folders and folders of
archived video files with a .mov extension.  Man it was going to take forever
to go through and rename them all to .mpg.  You can only do ONE at a time, and 
it asks you each time if you are SURE you want to change the extension....it's
like it's advising you to cut the red wire and not the blue one!  Seriously, it's not
like I'm going to blow UP something! **
So I made up a  little action in Automator to batch rename EVERY file in a folder from
.mov to .mpg.  It takes less than a second to change 500 or 1000 video files
from .mov to .mpg.  And it's available, free, to all subscribers of my blog 
right here.

All you do, is open the script, then click on the 'Run' button in the upper
right hand corner.  Open the folder full of .mov files.  Click on the top
one, then hit shift and click on the bottom one (or select 'all')  Once you
have all the .mov files selected, click on choose.  POOF!  Now all
your ClipWrap .mov files have been converted to .mpg files that will
play nice with both Premiere Pro AND Quicktime!  Why can't we all
just get along?  I guess maybe now we can......until I find the next strange
problem with my system......


Any questions, let me know!

* Luck may have had a bit to do with it but you didn't hear that from me....

** I mean I don't THINK I'm going to blow anything up by changing some file extensions
from .mov to .mpg.  On second thought, DON'T PRESS THAT BUTTON!
(Just kidding...........you hope........)


Gabe Strong
G-Force Productions
Digital Cinema | Websites | Consulting | Multimedia



Thursday, January 3, 2013

Metabones EF to NEX firmware....


My FS100 can't speak Canon.  But it has a very good translator.  The Metabones EF to NEX
adapter.  This is a pretty popular and well known lens adapter which allows you to use Canon 
mount lenses on the FS100/700 as well as other NEX cameras like the VG10/20 and the NEX 5/7
and so on.  The first version had a square 'hole' which apparently allowed for some very minor
'clipping' of bokeh at F stops around 1.4.  Metabones updated the adapter with the 'Mark II' version
which apparently solved this problem.  This is the version I bought.  However, after buying it,
I some strange behavior.  Everything worked PERFECTLY with my Tamron 17-50 2.8.
Iris control, zoom bar meter, focus distance display.....everything.  However, on my 
Sigma 50-15- 2.8, about half the time everything worked great.  The other half of the
time, NOTHING worked.  Not even iris.  So you had to attach and detach the lens from
the mount, and/or the adapter from the camera several times, and finally it would start
working again.  Curious, I brought the camera into a local lens shot and tested several
Sigma lenses.  NONE of them would work at all!  So I wrote a email to Metabones.
They told me that many Sigma lenses had a 'bug' and that I needed the latest firmware
on my adapter and asked me which version of firmware I had.  I had read that only
NEX still cameras could display the firmware version of the Metabones, but apparently,
this is NOT the case.  The FS100 can as well, as long as you have updated the FS100
firmware to version II.  Here is how you do it:
Menu > Others > Version Display
If you still are unsure, take a look at the pictures below.


In my case, my lens/mount adapter had version 10.  Metabones advised me to return it to them,
which I did.  They updated it at no cost and sent it back, fairly quickly it took about a week to
get back to me in Alaska which is honestly faster than I get most things.  After getting it back,
I checked again and now had version 15 installed.  But there were a couple quirky things.
First, the zoom position bar and focus display in feet no longer worked with ANY of my
lenses.  However, the iris worked perfectly on ANY lens, and the IS worked with lenses that
have IS.  Also, the fit of the adapter to the Canon lenses seems MUCH tighter.  I think the 
Metabones is a little bit of a 'work in progress' as they have to deal with all kinds of third party
lens manufacturers and make them 'talk' to the adapter.  I am giving them VERY high marks on
customer service as they always respond quickly to emails and have went the extra mile to make
sure I am getting the functions I need from their adapter.  It seems like their adapter keeps getting
better and better and while it is annoying to have to send off for firmware updates, it seems like
every firmware update makes it a better adapter.  So check your firmware, because you can
actually do it on a FS100!

Gabe Strong
G-Force Productions
Digital Cinema | Websites | Consulting | Multimedia