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Forum: Tips & Tricks Sep 17, 2018, 2:42 PM
Replies: 6
Views: 455
Posted By TCav
Another thing you might try is bracketing the...

Another thing you might try is bracketing the shutter speed, so you have a variety of images to choose from.
Forum: Misc Accessories Sep 16, 2018, 6:56 PM
Replies: 3
Views: 160
Posted By TCav
Price isn't always an indication of quality. ...

Price isn't always an indication of quality.

... but sometimes it is.

And even if the Smart Meter AS308 did break the first time you dropped it, you probably saved enough buying it to buy its...
Forum: News Discussion Sep 11, 2018, 4:26 PM
Replies: 0
Views: 146
Posted By TCav
Roger Cicala (LensRentals.com) thoughts on new FF Mirrorless cameras

Very interesting description of the strengths and weaknesses of Canon's, Nikon's, and Sony's offerings.
...
Forum: Canon Lenses Sep 10, 2018, 6:08 PM
Replies: 8
Views: 288
Posted By TCav
Extension tubes would help with that, and without...

Extension tubes would help with that, and without introducing another optical element of questionable parentage.



There are lots of good macro lenses. As I've said before, there are no bad...
Forum: Canon Lenses Sep 10, 2018, 5:15 AM
Replies: 8
Views: 288
Posted By TCav
Flowers are very cooperative, so you can use any...

Flowers are very cooperative, so you can use any macro lens. Insects can be skittish so you may need a longer lens to avoid frightening them away. Something from 85 mm to 135 mm should be good for...
Forum: Newbie Help Sep 7, 2018, 6:25 AM
Replies: 25
Views: 644
Posted By TCav
Extension tubes don't have any optical properties...

Extension tubes don't have any optical properties of their own, so your results depend entirely on the quality of the lens you use them with.

As it happens, the 18-55 and 55-250 are pretty good. I...
Forum: Newbie Help Sep 6, 2018, 7:17 PM
Replies: 25
Views: 644
Posted By TCav
That's a nice shoot, but not really a good test...

That's a nice shoot, but not really a good test of a macro setup. In addition, the reduced resolution for posting here would hide any lack of sharpness. Typically, inexpensive close-up lenses are...
Forum: Newbie Help Sep 6, 2018, 7:06 AM
Replies: 25
Views: 644
Posted By TCav
How about, instead of a link to the photo, you...

How about, instead of a link to the photo, you include a link to the webpage the photo is on?
Forum: Newbie Help Sep 6, 2018, 6:58 AM
Replies: 25
Views: 644
Posted By TCav
Still nothing.

Still nothing.
Forum: Canon Lenses Sep 5, 2018, 7:47 PM
Replies: 2
Views: 221
Posted By TCav
The Canon 75-300, in fact, ANYBODY'S 75-300 is a...

The Canon 75-300, in fact, ANYBODY'S 75-300 is a throw-away lens that was originally designed to supplement a kit lens in when manufacturers would sell them as part of a kit along with a reasonably...
Forum: Newbie Help Sep 5, 2018, 5:20 AM
Replies: 25
Views: 644
Posted By TCav
Been there. Done that. Can't see it. Does...

Been there. Done that. Can't see it.

Does it only exist in FB? How did you find it?
Forum: Newbie Help Sep 4, 2018, 4:49 PM
Replies: 25
Views: 644
Posted By TCav
Can't see it.

Can't see it.
Forum: Newbie Help Sep 4, 2018, 5:35 AM
Replies: 25
Views: 644
Posted By TCav
When selecting a macro lens, the focal length you...

When selecting a macro lens, the focal length you should use depends on your intended subject. If the subject is inanimate, a short focal length is fine as long as you're not so close to the subject...
Forum: Newbie Help Sep 3, 2018, 7:38 PM
Replies: 25
Views: 644
Posted By TCav
There's no such thing as a bad macro lens. ...

There's no such thing as a bad macro lens.
...
Forum: Newbie Help Sep 3, 2018, 7:31 PM
Replies: 25
Views: 644
Posted By TCav
Yes, but the camera's AE system can handle it...

Yes, but the camera's AE system can handle it automatically. And the amount varies from lens to lens.
Forum: Newbie Help Sep 3, 2018, 10:40 AM
Replies: 25
Views: 644
Posted By TCav
And, BTW, extension tubes turn any lens into a...

And, BTW, extension tubes turn any lens into a macro lens, and they don't have any optical elements that would reduce contrast.
Forum: Newbie Help Sep 3, 2018, 6:54 AM
Replies: 25
Views: 644
Posted By TCav
On the other hand, both the 18-55 and the 55-250...

On the other hand, both the 18-55 and the 55-250 have 12 elements in 10 groups. Each air-to-glass, glass-to-air, and glass-to-glass interface will reflect some light back out of the lens, thus...
Forum: Newbie Help Sep 1, 2018, 2:57 PM
Replies: 25
Views: 644
Posted By TCav
I'd go along with all the recommendations you've...

I'd go along with all the recommendations you've described.

The only things you've got that are good are the T6 and the 18-55. The 75-300 is bad, and for a lot more reasons than you were told,...
Forum: Tips & Tricks Aug 23, 2018, 7:04 PM
Replies: 6
Views: 455
Posted By TCav
Here's an image showing the effects of different...

Here's an image showing the effects of different shutter speeds on an image of a stream:

https://upload.wikimedia.org/wikipedia/commons/7/77/Shutter_speed_waterfall.gif
Forum: Tips & Tricks Aug 23, 2018, 12:44 PM
Replies: 6
Views: 455
Posted By TCav
Neutral Density Filters...

Neutral Density Filters (https://en.wikipedia.org/wiki/Neutral-density_filter) limit the amount of light that passes through the lens to the sensor. As such, they require that, in order to maintain a...
Forum: General Discussion Jul 26, 2018, 4:45 PM
Replies: 3
Views: 242
Posted By TCav
You are very kind.

You are very kind.
Forum: General Discussion Jul 26, 2018, 11:58 AM
Replies: 3
Views: 242
Posted By TCav
Haze (https://en.wikipedia.org/wiki/Haze) is...

Haze (https://en.wikipedia.org/wiki/Haze) is airborne particles that all by themselves reflect light, and often serve as a platform upon which humidity will condense, which greatly enhances it's...
Forum: General Discussion Jul 24, 2018, 6:26 PM
Replies: 73
Views: 2,532
Posted By TCav
So, the smartphone idea was my extrapolating...

So, the smartphone idea was my extrapolating something you mentioned. If it doesn't work, I think you need to go back to something like the Transparent Materials Adapter...
Forum: General Discussion Jul 23, 2018, 5:28 AM
Replies: 73
Views: 2,532
Posted By TCav
... and hope the smartphone doesn't go to sleep...

... and hope the smartphone doesn't go to sleep before the scan head is finished.
Forum: General Discussion Jul 23, 2018, 5:26 AM
Replies: 73
Views: 2,532
Posted By TCav
Good point, but HP's transparency attachment (for...

Good point, but HP's transparency attachment (for its flatbed scanners) doesn't do that, but we'll have to wait and see.
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