18
Mar 18

(Download pdf version)

When you have to use high value of ISO in your photos it's sure that you'll have some noise problem, also using full frame camera. But in post-production it's possible di reduce this aspect. Photoshop CC has two filter in order to reduce the chromatic noise: 

  • Reduce noise
  • Dust and scratches

Reduce noise filter

We start with this image; how you can see the backgroud is a bit grainy (click the picture to zoom in)

 

but with the reduce noise filter we can get this situation: using the filter setting of the picture the noise background is less then before, but it's already a little bit visible.

 

 

Dust and scratches

 

With this filter is possible to get a very soft background, in fact with only a radious of 6 pixel the chromatic noise is cancelled.

 

 

Now is better to explain one thing: these two Photoshop filter are very useful and you could get some very interesting results in order to remove chromatic noise related at high ISO, but they have to be contextualized to the photo because in some case is better to use the first filter, and in other cases is better to use the second filter. Futhermore if you printed your photos, in the most cases you coudn't see the chromatic noise, so that work could be unuseful, instead if you publish your pictures only on the Web, so it makes sense.

Second thing. In this short tutorial I worked with different copy layers: one for the background and one for subject that I have cutted out with some Photoshop tools in order to get a better job, and to compare the photo before and after the filters application.

My advise is to try with the first one filter, and if the result aren't so good so try with the second one, but Always working with the layers.

 

Bye

26
Sep 17

(Download pdf version)

Time ago I found a new way to make more sharpness an image using lab color method in Photoshop CC 2017.

The first thing I do is adjust basic parameters with Lightroom CC 2017:
 
before...
 
 
...and after (the red box indicates the modified parameters):
 
 
then I open the image with Photoshop:
 
 
I now perform several functions as follows: duplicate the main layer
 
 
and then I convert it to an advanced object (the icon layer changes...):
 
 
After I open the advanced object layer with a double click on the icon and I convert the image in Lab color...
 
 
Now I select the Chanel tab and the Luminosity layer (see the red box...): the image becomes black and White...
 
 
Then I make a selection with CTRL+click on the Luminosity icon of the Lumonosity layer and I invert the selection with CTRL+SHIFT+I.
 
 
Now we can apply the sharpness filter two times...
 
 
the first with the following parameters: 200, 1, 2
 
 
the second with the parameters 50, 20, 2.
 
 
Now you have to save the image (CTRL+S) and close the advanced object image with the following result:
 
 
The 100% zoom with the sharp lab mask...
 
 
... and without.
 
 
Because the mask is too strong I prefer to shade a little bit about 50% (see the red box at opacity option):
 
 
Now we have to reduce the general noise, so we create a selection with Quick selection (with this tool I select some vegetation on the left...) and Polygonal selection tools for refinement, and...
 
 
... than create a new layer with copy&paste the selection.
 
 
The next step is to reduce the noise of the middle layer with Noise reduce tool:
 
 
Reshade the first layer at about 50% of opacity for the final result.
 
 
I hope you enjoy with this tutorial and see you soon!!
Bye

 

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  • Not your ordinary camera bag: Rhake waterproof pack with Camera Capsule insert review

    The Rhake Weatherproof Bag + Camera Capsule
    $365 (bag) + $130 (insert) | MissionWorkshop.com

    The Rhake pack has a roll top giving it a decent degree of expansion.

    The Rhake waterproof backpack by Mission Workshops doesn’t look like an ordinary camera bag – instead it looks a lot more like a high quality bike messenger pack or something you might take on a weekend trip when packing light. And that’s the point. The bag’s 22L main compartment is designed to be multi-functional. Once you slide the Capsule Camera insert ($130) into the Rhake you have a camera bag with a utilitarian design, albeit with a very high price tag.

    The Capsule Camera insert that slides into the Rhake pack.

    Though this pack is not designed specifically with photographers in mind, I was intrigued to find out just how functional it could be.

    Specifications

    • Exterior: 21 x 13 x 5 in / 53 x 33 x 13cm
    • Interior Volume: 22L
    • Capsule Insert: 9.75 x 17.75 x 4.25in / 25 x 45 x 11cm
    • Laptop Compartment: Dedicated 17in Exterior Pocket
    • Weight: 3.1lbs / 1.4kg

    Design & construction

    The first thing I noticed about the Rhake was the high quality construction – Mission Design guarantees their products for life – which makes me believe that this thing was built to last. The bag is made of weatherproof nylon fabric called HT500 that is apparently exclusive to the company. It gives the pack an understated look and a good degree of water and stain resistance.

    The Rhake pack's laptop compartment can fit up to a 17" computer. The pack also has a dedicated tablet compartment.

    The second thing I noticed about this bag was the amount of organizational pockets. There are technically two zippered compartments that are large enough to fit a laptop (a dedicated exterior pocket, shown above left, and a second one within the 22L main compartment). On the back of the bag, opposite the exterior laptop pocket, there is a mesh water bottle pocket that tucks away when not in use.

    There are numerous options for organization within this bag to suit your tastes

    The front of the Rhake features a dedicated 10” tablet pocket and two accessory pouches (one at the top of the bag and one at the bottom) for stashing chargers, spare batteries or other items that need to be accessed quickly.

    There are two zippered front pockets with plenty of room to organize smaller odds and ends. There are also two accessory pouches, one at the top (accessible via the roll top) - and one at the bottom (accessible via zipper).

    There are also two larger zippered front pockets, one of which is filled with three smaller interior zippered mesh pockets. In short, there are numerous options for organization within this bag to suit your tastes.

    The straps are well-padded and a horizontal strap offers added stability.

    The back of the Rhake is made of perforated foam and there is a luggage handle pass-through for use with roller bags. The straps have a nice amount of padding and feature an additional horizontal buckled strap.

    The camera insert can be accessed from the top of the bag. A look inside the Rhake pack once the camera insert has been removed.

    The Camera Capsule insert is accessed from the top of the Rhake pack. The inside can be customized to your taste using the padded partitions. There’s also a back pocket in the insert where you can slide in an 11" laptop or tablet.

    A close-up look inside the Camera Capsule insert. I was able to fit two bodies, several lenses and a flash.

    In the field

    All of my photographer friends who saw the Rhake in action immediately complimented the style of this bag. It looks good, and it can comfortably hold a large amount of gear. I loved the many organizational pockets and those tiny mesh interiors were a great place for all of my miscellaneous items that I end up with at a shoot.

    Once it’s packed, the front is snapped together and the top rolled shut, the Rhake pack is a surprisingly compact gear bag with the ability to expand to hold a large amount of equipment.

    Its compact silhouette made it a good for riding the subway (even during rush hour) and hauling it around didn’t make me feel like I was in danger of destroying a shoulder.

    There's no way to access most of the gear stored within the Camera Capsule insert unless you completely remove it from the bag

    Unfortunately, there is one glaring design flaw with the Rhake: there's no way to access most of the gear stored within the Camera Capsule insert unless you completely remove it from the bag. For some photographers, this might seem like a minor oversight; after all the Rhake is a multi-functional bag, but I found this design element to be really inconvenient. It was easy enough to access my main camera body through the top zipper, but if I wanted to switch lenses I needed to totally unpack the 22L compartment – which is kind of a pain when working in the cramped quarters of a dark music venue.

    When the bag is fully packed it also takes a little bit of elbow grease to remove the Camera Capsule from the main compartment. I imagine that with more use the bag’s structure will become less tight, but on the shoots I took the Rhake to I found myself having to spend a few extra moments safely removing the capsule from the bag. The Camera Capsule essentially fills the 22L compartment, making it difficult to stash anything else in there (a jacket, supplies for an overnight trip, etc.). I’d be curious to see how the Rhake would function with smaller camera inserts like the Topo Camera Cubes.

    What’s the bottom line?

    The Rhake’s construction is high quality, the design is aesthetically pleasing and it can hold a good deal of gear without looking bulky, making it great for everyday use. But the bag is pricey and the multi-functionality aspects make certain elements of the design inconvenient for photographers. Ultimately, if you're looking for a dedicated camera bag, there are other more cost-friendly and functional options out there. However, if you want a pack that can pull double duty as a bike bag or a weekend travel pack, the Rhake might be for you.

    What We Like:

    • Utilitarian design
    • Durable construction
    • Slim profile
    • Ample organizational pockets
    • Holds a lot of equipment
    • Multi-functional bag, could be used as a camera bag or for something else

    What We Don’t Like:

    • High price tag
    • Inability to access lenses in Camera Capsule without unpacking

    Rating:

(C) 2017 Giuseppe Gessa