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05-20-2016, 11:17 AM - 1 Like   #31
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QuoteOriginally posted by MyTZuS Quote
When using my crop lenses, the FF will go into 16MP mode. But, is the NR as good at 16 as it is at 36, i.e., FF mode?
Everything is good in the crop mode. Like a K5IIs on super steroids.

I just had this thought earlier.....unless you have a super long lens and can get very close, shooting wildlife usually requires cropping if you want to get a detailed look at the subject. Since you can frame it and crop as you shoot, this is just an added time saver to what you would probably do anyhow.

Most of what I am shooting now is ready to process without additional cropping. Like this one. If you are going to use a FF for birds and such, you had better have a long lens and be almost invisible as you stalk your subject. Here, I sit at my desk and fire away!

This was 1/100 handheld @500mm ISO 3200. If you can get some light and shoot at ISO 800 or lower you can get some very nice results, even with the Bigma.


Regards!

05-20-2016, 12:11 PM   #32
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I've tried a few crop lenses and have found that I definitely don't like using lenses that don't fill the full frame. The only exception for me with the lenses I have is DA10-17 because it fills the frame at 14mm. Oh and haven't tried Da35/2.4 yet but assume that will be ok....
05-20-2016, 02:35 PM - 1 Like   #33
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QuoteOriginally posted by stevebrot Quote
Good question! Is the camera smart enough to not meter the full frame when a DA-series lens is mounted and auto crop is overriden?
Perhaps someone with a K-1 on their hands and an idle minute or two could check this ?
05-20-2016, 03:16 PM   #34
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QuoteOriginally posted by stevebrot Quote
Good question! Is the camera smart enough to not meter the full frame when a DA-series lens is mounted and auto crop is overriden?
Steve

QuoteOriginally posted by kh1234567890 Quote
Perhaps someone with a K-1 on their hands and an idle minute or two could check this ?
I just tested with DA15, using a white screen app on my phone and slowly moving it into frame while in multi segment metering and it does not seem to meter the full frame. I also noticed that all the focus points are not used either when DA15 is on, regardless of being in FF or crop mode. The outer ring of focus points are greyed out.

05-20-2016, 03:23 PM   #35
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QuoteOriginally posted by todd Quote
I just tested with DA15, using a white screen app on my phone and slowly moving it into frame while in multi segment metering and it does not seem to meter the full frame. I also noticed that all the focus points are not used either when DA15 is on, regardless of being in FF or crop mode. The outer ring of focus points are greyed out.
Are the greyed out focus points within the crop area? It would seem strange not to use them if they fall within the crop area.
05-20-2016, 03:24 PM   #36
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QuoteOriginally posted by todd Quote
I just tested with DA15, using a white screen app on my phone and slowly moving it into frame while in multi segment metering and it does not seem to meter the full frame. I also noticed that all the focus points are not used either when DA15 is on, regardless of being in FF or crop mode. The outer ring of focus points are greyed out.
Interesting. I wonder if that is the case for all non 'FF rated' lenses ?
05-20-2016, 06:12 PM   #37
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QuoteOriginally posted by todd Quote
I just tested with DA15, using a white screen app on my phone and slowly moving it into frame while in multi segment metering and it does not seem to meter the full frame. I also noticed that all the focus points are not used either when DA15 is on, regardless of being in FF or crop mode. The outer ring of focus points are greyed out.
QuoteOriginally posted by RockvilleBob Quote
Are the greyed out focus points within the crop area? It would seem strange not to use them if they fall within the crop area.
They are within the APS-C area.

QuoteOriginally posted by kh1234567890 Quote
Interesting. I wonder if that is the case for all non 'FF rated' lenses ?
I've just put on the DA 17-70mm f/4 lens in Crop Mode.

I've set "A 33". (Auto - 33 AF points). And I've tried both AF.S and AF.C.

When I half-way press the button, any set of the AF points can become highlighted, depending on where they fall on the subject. Including the two tall ones at left and right.
05-21-2016, 04:45 AM   #38
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Perhaps a firmware update corrects this. Pentax can ill afford to cripple autofocus - an area in which it historically lags the competition.

05-21-2016, 09:52 PM   #39
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This is NOT my post, but it explains the difference of the crop factor. I get it, 36 megapixels vs 15 is a big difference. Printing something on a wall that is 10 feet by 10 feet may show the difference is not there.

But the difference is visible on the back of the camera screen, visible on the camera lcd, and visible on computer screens

8 Things I Learned Switching from a Crop Sensor to a Full-Frame Sensor
05-22-2016, 04:32 AM   #40
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QuoteOriginally posted by Genobreaker Quote
I've used a the smcp DA 35 f2.4 and didn't really see the vignette unless I opened up to 2.4. Intial use of DA 50 also similar and was shooting penguins swimming underwater.
Shooting penguins... were you in Tulsa ?

---------- Post added 05-22-16 at 05:40 AM ----------

QuoteOriginally posted by Weevil Quote
This is what the 15mm LTD looks like on the K-1 with the hood deployed



This is without the hood





This is what is does in crop mode...

I like that. The image with the hood extended is really kind of neat and it could make a useful.. something from time to time. More fun and.. etc. than digital frames and filters :^)

With the last two pictures, it is pretty clear the properly cropped image is very close to the edges of the image circle and harder vignette..
05-22-2016, 03:00 PM   #41
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QuoteOriginally posted by Tan68 Quote
Shooting penguins... were you in Tulsa ?
No Kansas City.
05-25-2016, 12:32 PM   #42
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I've just tried the crop mode with a Sigma 150-500 Bigmos + 1.5x Kenko TC and the AF is much faster and more accurate and without the annoying hunting in and out of the K-3. Just my $0.02.
05-25-2016, 01:46 PM   #43
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QuoteOriginally posted by wtlwdwgn Quote
I've just tried the crop mode with a Sigma 150-500 Bigmos + 1.5x Kenko TC and the AF is much faster and more accurate and without the annoying hunting in and out of the K-3. Just my $0.02.
Thanks appreciate you posting this information.
05-25-2016, 06:32 PM   #44
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FDX304, B752, KMEM-KBIL, descending a couple of miles away. K-1, Sigma 150-500 Bigmos + Kenko 1.5x TC, crop mode, center crop.
05-25-2016, 08:33 PM - 1 Like   #45
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I own a number of DA lenses, my observations are

Most work fully or partially in FF mode with the exception of the 18-135, all are good in crop mode.
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