How large a print form 10D?

[mwinog2777]

Using my 10D, and a sharp ISO100 tiff image, how much can I blow it up, using a commercial lab for the print?

Using Photoshop, what should I use for changing size, nearest neighbor, bilinear or bicubic?

Any other suggections for a big print?

[dleewo]

mwinog2777 wrote:
Using my 10D, and a sharp ISO100 tiff image, how much can I blow it up, using a commercial lab for the print?

Using Photoshop, what should I use for changing size, nearest neighbor, bilinear or bicubic?

Any other suggections for a big print?


I recently got a 20x30 enlargement done from EZPrints.com and it came out great. It was an ISO 100 image.

I had used Fred Miranda's "SI PRO" action to upsize it.

I don't know if I could larger than that as that's the largest size that SI PRO would do at 300dpi and also that EZPrints.com would print.

I had to upload a 10MB JPEG as the TIFF was too large for EZPrints (approx 160MB)

[martcol]

mwinog2777 wrote:
Using Photoshop, what should I use for changing size, nearest neighbor, bilinear or bicubic?

You should use bicubic to increase the size of an image in PS and do so in inrements. Increase size at say 10% at a time. Afterwards, you might need to add a little sharpening in USM but you have to be a little more careful here as the image you are sharpening will not be as good as what you started with.

Martin

[lziering]

martcol wrote:
mwinog2777 wrote:
Using Photoshop, what should I use for changing size, nearest neighbor, bilinear or bicubic?

You should use bicubic to increase the size of an image in PS and do so in inrements. Increase size at say 10% at a time. Afterwards, you might need to add a little sharpening in USM but you have to be a little more careful here as the image you are sharpening will not be as good as what you started with.

Martin


I agree, Bicubic using the stair-step method described above works best.